; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt -codegenprepare -mtriple=arm64-apple=ios -S -o - %s | FileCheck --check-prefix=OPT %s ; RUN: llc < %s -mtriple=arm64-eabi | FileCheck --check-prefix=LLC %s %struct.X = type { i8, i8, [2 x i8] } %struct.Y = type { i32, i8 } %struct.Z = type { i8, i8, [2 x i8], i16 } %struct.A = type { i64, i8 } define void @foo(%struct.X* nocapture %x, %struct.Y* nocapture %y) nounwind optsize ssp { ; LLC-LABEL: foo: ; LLC: // %bb.0: ; LLC-NEXT: ldr w8, [x0] ; LLC-NEXT: ubfx w8, w8, #3, #1 ; LLC-NEXT: strb w8, [x1, #4] ; LLC-NEXT: ret ; OPT-LABEL: @foo( ; OPT-NEXT: [[TMP:%.*]] = bitcast %struct.X* [[X:%.*]] to i32* ; OPT-NEXT: [[TMP1:%.*]] = load i32, i32* [[TMP]], align 4 ; OPT-NEXT: [[B:%.*]] = getelementptr inbounds [[STRUCT_Y:%.*]], %struct.Y* [[Y:%.*]], i64 0, i32 1 ; OPT-NEXT: [[BF_CLEAR:%.*]] = lshr i32 [[TMP1]], 3 ; OPT-NEXT: [[BF_CLEAR_LOBIT:%.*]] = and i32 [[BF_CLEAR]], 1 ; OPT-NEXT: [[FROMBOOL:%.*]] = trunc i32 [[BF_CLEAR_LOBIT]] to i8 ; OPT-NEXT: store i8 [[FROMBOOL]], i8* [[B]], align 1 ; OPT-NEXT: ret void ; %tmp = bitcast %struct.X* %x to i32* %tmp1 = load i32, i32* %tmp, align 4 %b = getelementptr inbounds %struct.Y, %struct.Y* %y, i64 0, i32 1 %bf.clear = lshr i32 %tmp1, 3 %bf.clear.lobit = and i32 %bf.clear, 1 %frombool = trunc i32 %bf.clear.lobit to i8 store i8 %frombool, i8* %b, align 1 ret void } define i32 @baz(i64 %cav1.coerce) nounwind { ; LLC-LABEL: baz: ; LLC: // %bb.0: ; LLC-NEXT: sbfx w0, w0, #0, #4 ; LLC-NEXT: ret ; OPT-LABEL: @baz( ; OPT-NEXT: [[TMP:%.*]] = trunc i64 [[CAV1_COERCE:%.*]] to i32 ; OPT-NEXT: [[TMP1:%.*]] = shl i32 [[TMP]], 28 ; OPT-NEXT: [[BF_VAL_SEXT:%.*]] = ashr exact i32 [[TMP1]], 28 ; OPT-NEXT: ret i32 [[BF_VAL_SEXT]] ; %tmp = trunc i64 %cav1.coerce to i32 %tmp1 = shl i32 %tmp, 28 %bf.val.sext = ashr exact i32 %tmp1, 28 ret i32 %bf.val.sext } define i32 @bar(i64 %cav1.coerce) nounwind { ; LLC-LABEL: bar: ; LLC: // %bb.0: ; LLC-NEXT: sbfx w0, w0, #4, #6 ; LLC-NEXT: ret ; OPT-LABEL: @bar( ; OPT-NEXT: [[TMP:%.*]] = trunc i64 [[CAV1_COERCE:%.*]] to i32 ; OPT-NEXT: [[CAV1_SROA_0_1_INSERT:%.*]] = shl i32 [[TMP]], 22 ; OPT-NEXT: [[TMP1:%.*]] = ashr i32 [[CAV1_SROA_0_1_INSERT]], 26 ; OPT-NEXT: ret i32 [[TMP1]] ; %tmp = trunc i64 %cav1.coerce to i32 %cav1.sroa.0.1.insert = shl i32 %tmp, 22 %tmp1 = ashr i32 %cav1.sroa.0.1.insert, 26 ret i32 %tmp1 } define void @fct1(%struct.Z* nocapture %x, %struct.A* nocapture %y) nounwind optsize ssp { ; LLC-LABEL: fct1: ; LLC: // %bb.0: ; LLC-NEXT: ldr x8, [x0] ; LLC-NEXT: ubfx x8, x8, #3, #1 ; LLC-NEXT: str x8, [x1] ; LLC-NEXT: ret ; OPT-LABEL: @fct1( ; OPT-NEXT: [[TMP:%.*]] = bitcast %struct.Z* [[X:%.*]] to i64* ; OPT-NEXT: [[TMP1:%.*]] = load i64, i64* [[TMP]], align 4 ; OPT-NEXT: [[B1:%.*]] = bitcast %struct.A* [[Y:%.*]] to i64* ; OPT-NEXT: [[BF_CLEAR:%.*]] = lshr i64 [[TMP1]], 3 ; OPT-NEXT: [[BF_CLEAR_LOBIT:%.*]] = and i64 [[BF_CLEAR]], 1 ; OPT-NEXT: store i64 [[BF_CLEAR_LOBIT]], i64* [[B1]], align 8 ; OPT-NEXT: ret void ; %tmp = bitcast %struct.Z* %x to i64* %tmp1 = load i64, i64* %tmp, align 4 %b = getelementptr inbounds %struct.A, %struct.A* %y, i64 0, i32 0 %bf.clear = lshr i64 %tmp1, 3 %bf.clear.lobit = and i64 %bf.clear, 1 store i64 %bf.clear.lobit, i64* %b, align 8 ret void } define i64 @fct2(i64 %cav1.coerce) nounwind { ; LLC-LABEL: fct2: ; LLC: // %bb.0: ; LLC-NEXT: sbfx x0, x0, #0, #36 ; LLC-NEXT: ret ; OPT-LABEL: @fct2( ; OPT-NEXT: [[TMP:%.*]] = shl i64 [[CAV1_COERCE:%.*]], 28 ; OPT-NEXT: [[BF_VAL_SEXT:%.*]] = ashr exact i64 [[TMP]], 28 ; OPT-NEXT: ret i64 [[BF_VAL_SEXT]] ; %tmp = shl i64 %cav1.coerce, 28 %bf.val.sext = ashr exact i64 %tmp, 28 ret i64 %bf.val.sext } define i64 @fct3(i64 %cav1.coerce) nounwind { ; LLC-LABEL: fct3: ; LLC: // %bb.0: ; LLC-NEXT: sbfx x0, x0, #4, #38 ; LLC-NEXT: ret ; OPT-LABEL: @fct3( ; OPT-NEXT: [[CAV1_SROA_0_1_INSERT:%.*]] = shl i64 [[CAV1_COERCE:%.*]], 22 ; OPT-NEXT: [[TMP1:%.*]] = ashr i64 [[CAV1_SROA_0_1_INSERT]], 26 ; OPT-NEXT: ret i64 [[TMP1]] ; %cav1.sroa.0.1.insert = shl i64 %cav1.coerce, 22 %tmp1 = ashr i64 %cav1.sroa.0.1.insert, 26 ret i64 %tmp1 } define void @fct4(i64* nocapture %y, i64 %x) nounwind optsize inlinehint ssp { ; LLC-LABEL: fct4: ; LLC: // %bb.0: // %entry ; LLC-NEXT: ldr x8, [x0] ; LLC-NEXT: bfxil x8, x1, #16, #24 ; LLC-NEXT: str x8, [x0] ; LLC-NEXT: ret ; OPT-LABEL: @fct4( ; OPT-NEXT: entry: ; OPT-NEXT: [[TMP0:%.*]] = load i64, i64* [[Y:%.*]], align 8 ; OPT-NEXT: [[AND:%.*]] = and i64 [[TMP0]], -16777216 ; OPT-NEXT: [[SHR:%.*]] = lshr i64 [[X:%.*]], 16 ; OPT-NEXT: [[AND1:%.*]] = and i64 [[SHR]], 16777215 ; OPT-NEXT: [[OR:%.*]] = or i64 [[AND]], [[AND1]] ; OPT-NEXT: store i64 [[OR]], i64* [[Y]], align 8 ; OPT-NEXT: ret void ; entry: %0 = load i64, i64* %y, align 8 %and = and i64 %0, -16777216 %shr = lshr i64 %x, 16 %and1 = and i64 %shr, 16777215 %or = or i64 %and, %and1 store i64 %or, i64* %y, align 8 ret void } define void @fct5(i32* nocapture %y, i32 %x) nounwind optsize inlinehint ssp { ; LLC-LABEL: fct5: ; LLC: // %bb.0: // %entry ; LLC-NEXT: ldr w8, [x0] ; LLC-NEXT: bfxil w8, w1, #16, #3 ; LLC-NEXT: str w8, [x0] ; LLC-NEXT: ret ; OPT-LABEL: @fct5( ; OPT-NEXT: entry: ; OPT-NEXT: [[TMP0:%.*]] = load i32, i32* [[Y:%.*]], align 8 ; OPT-NEXT: [[AND:%.*]] = and i32 [[TMP0]], -8 ; OPT-NEXT: [[SHR:%.*]] = lshr i32 [[X:%.*]], 16 ; OPT-NEXT: [[AND1:%.*]] = and i32 [[SHR]], 7 ; OPT-NEXT: [[OR:%.*]] = or i32 [[AND]], [[AND1]] ; OPT-NEXT: store i32 [[OR]], i32* [[Y]], align 8 ; OPT-NEXT: ret void ; entry: %0 = load i32, i32* %y, align 8 %and = and i32 %0, -8 %shr = lshr i32 %x, 16 %and1 = and i32 %shr, 7 %or = or i32 %and, %and1 store i32 %or, i32* %y, align 8 ret void } ; Check if we can still catch bfm instruction when we drop some low bits define void @fct6(i32* nocapture %y, i32 %x) nounwind optsize inlinehint ssp { ; LLC-LABEL: fct6: ; LLC: // %bb.0: // %entry ; LLC-NEXT: ldr w8, [x0] ; LLC-NEXT: bfxil w8, w1, #16, #3 ; LLC-NEXT: lsr w8, w8, #2 ; LLC-NEXT: str w8, [x0] ; LLC-NEXT: ret ; OPT-LABEL: @fct6( ; OPT-NEXT: entry: ; OPT-NEXT: [[TMP0:%.*]] = load i32, i32* [[Y:%.*]], align 8 ; OPT-NEXT: [[AND:%.*]] = and i32 [[TMP0]], -8 ; OPT-NEXT: [[SHR:%.*]] = lshr i32 [[X:%.*]], 16 ; OPT-NEXT: [[AND1:%.*]] = and i32 [[SHR]], 7 ; OPT-NEXT: [[OR:%.*]] = or i32 [[AND]], [[AND1]] ; OPT-NEXT: [[SHR1:%.*]] = lshr i32 [[OR]], 2 ; OPT-NEXT: store i32 [[SHR1]], i32* [[Y]], align 8 ; OPT-NEXT: ret void ; entry: ; lsr is an alias of ubfm %0 = load i32, i32* %y, align 8 %and = and i32 %0, -8 %shr = lshr i32 %x, 16 %and1 = and i32 %shr, 7 %or = or i32 %and, %and1 %shr1 = lshr i32 %or, 2 store i32 %shr1, i32* %y, align 8 ret void } ; Check if we can still catch bfm instruction when we drop some high bits define void @fct7(i32* nocapture %y, i32 %x) nounwind optsize inlinehint ssp { ; LLC-LABEL: fct7: ; LLC: // %bb.0: // %entry ; LLC-NEXT: ldr w8, [x0] ; LLC-NEXT: bfxil w8, w1, #16, #3 ; LLC-NEXT: lsl w8, w8, #2 ; LLC-NEXT: str w8, [x0] ; LLC-NEXT: ret ; OPT-LABEL: @fct7( ; OPT-NEXT: entry: ; OPT-NEXT: [[TMP0:%.*]] = load i32, i32* [[Y:%.*]], align 8 ; OPT-NEXT: [[AND:%.*]] = and i32 [[TMP0]], -8 ; OPT-NEXT: [[SHR:%.*]] = lshr i32 [[X:%.*]], 16 ; OPT-NEXT: [[AND1:%.*]] = and i32 [[SHR]], 7 ; OPT-NEXT: [[OR:%.*]] = or i32 [[AND]], [[AND1]] ; OPT-NEXT: [[SHL:%.*]] = shl i32 [[OR]], 2 ; OPT-NEXT: store i32 [[SHL]], i32* [[Y]], align 8 ; OPT-NEXT: ret void ; entry: ; lsl is an alias of ubfm %0 = load i32, i32* %y, align 8 %and = and i32 %0, -8 %shr = lshr i32 %x, 16 %and1 = and i32 %shr, 7 %or = or i32 %and, %and1 %shl = shl i32 %or, 2 store i32 %shl, i32* %y, align 8 ret void } ; Check if we can still catch bfm instruction when we drop some low bits ; (i64 version) define void @fct8(i64* nocapture %y, i64 %x) nounwind optsize inlinehint ssp { ; LLC-LABEL: fct8: ; LLC: // %bb.0: // %entry ; LLC-NEXT: ldr x8, [x0] ; LLC-NEXT: bfxil x8, x1, #16, #3 ; LLC-NEXT: lsr x8, x8, #2 ; LLC-NEXT: str x8, [x0] ; LLC-NEXT: ret ; OPT-LABEL: @fct8( ; OPT-NEXT: entry: ; OPT-NEXT: [[TMP0:%.*]] = load i64, i64* [[Y:%.*]], align 8 ; OPT-NEXT: [[AND:%.*]] = and i64 [[TMP0]], -8 ; OPT-NEXT: [[SHR:%.*]] = lshr i64 [[X:%.*]], 16 ; OPT-NEXT: [[AND1:%.*]] = and i64 [[SHR]], 7 ; OPT-NEXT: [[OR:%.*]] = or i64 [[AND]], [[AND1]] ; OPT-NEXT: [[SHR1:%.*]] = lshr i64 [[OR]], 2 ; OPT-NEXT: store i64 [[SHR1]], i64* [[Y]], align 8 ; OPT-NEXT: ret void ; entry: ; lsr is an alias of ubfm %0 = load i64, i64* %y, align 8 %and = and i64 %0, -8 %shr = lshr i64 %x, 16 %and1 = and i64 %shr, 7 %or = or i64 %and, %and1 %shr1 = lshr i64 %or, 2 store i64 %shr1, i64* %y, align 8 ret void } ; Check if we can still catch bfm instruction when we drop some high bits ; (i64 version) define void @fct9(i64* nocapture %y, i64 %x) nounwind optsize inlinehint ssp { ; LLC-LABEL: fct9: ; LLC: // %bb.0: // %entry ; LLC-NEXT: ldr x8, [x0] ; LLC-NEXT: bfxil x8, x1, #16, #3 ; LLC-NEXT: lsl x8, x8, #2 ; LLC-NEXT: str x8, [x0] ; LLC-NEXT: ret ; OPT-LABEL: @fct9( ; OPT-NEXT: entry: ; OPT-NEXT: [[TMP0:%.*]] = load i64, i64* [[Y:%.*]], align 8 ; OPT-NEXT: [[AND:%.*]] = and i64 [[TMP0]], -8 ; OPT-NEXT: [[SHR:%.*]] = lshr i64 [[X:%.*]], 16 ; OPT-NEXT: [[AND1:%.*]] = and i64 [[SHR]], 7 ; OPT-NEXT: [[OR:%.*]] = or i64 [[AND]], [[AND1]] ; OPT-NEXT: [[SHL:%.*]] = shl i64 [[OR]], 2 ; OPT-NEXT: store i64 [[SHL]], i64* [[Y]], align 8 ; OPT-NEXT: ret void ; entry: ; lsr is an alias of ubfm %0 = load i64, i64* %y, align 8 %and = and i64 %0, -8 %shr = lshr i64 %x, 16 %and1 = and i64 %shr, 7 %or = or i64 %and, %and1 %shl = shl i64 %or, 2 store i64 %shl, i64* %y, align 8 ret void } ; Check if we can catch bfm instruction when lsb is 0 (i.e., no lshr) ; (i32 version) define void @fct10(i32* nocapture %y, i32 %x) nounwind optsize inlinehint ssp { ; LLC-LABEL: fct10: ; LLC: // %bb.0: // %entry ; LLC-NEXT: ldr w8, [x0] ; LLC-NEXT: bfxil w8, w1, #0, #3 ; LLC-NEXT: lsl w8, w8, #2 ; LLC-NEXT: str w8, [x0] ; LLC-NEXT: ret ; OPT-LABEL: @fct10( ; OPT-NEXT: entry: ; OPT-NEXT: [[TMP0:%.*]] = load i32, i32* [[Y:%.*]], align 8 ; OPT-NEXT: [[AND:%.*]] = and i32 [[TMP0]], -8 ; OPT-NEXT: [[AND1:%.*]] = and i32 [[X:%.*]], 7 ; OPT-NEXT: [[OR:%.*]] = or i32 [[AND]], [[AND1]] ; OPT-NEXT: [[SHL:%.*]] = shl i32 [[OR]], 2 ; OPT-NEXT: store i32 [[SHL]], i32* [[Y]], align 8 ; OPT-NEXT: ret void ; entry: ; lsl is an alias of ubfm %0 = load i32, i32* %y, align 8 %and = and i32 %0, -8 %and1 = and i32 %x, 7 %or = or i32 %and, %and1 %shl = shl i32 %or, 2 store i32 %shl, i32* %y, align 8 ret void } ; Check if we can catch bfm instruction when lsb is 0 (i.e., no lshr) ; (i64 version) define void @fct11(i64* nocapture %y, i64 %x) nounwind optsize inlinehint ssp { ; LLC-LABEL: fct11: ; LLC: // %bb.0: // %entry ; LLC-NEXT: ldr x8, [x0] ; LLC-NEXT: bfxil x8, x1, #0, #3 ; LLC-NEXT: lsl x8, x8, #2 ; LLC-NEXT: str x8, [x0] ; LLC-NEXT: ret ; OPT-LABEL: @fct11( ; OPT-NEXT: entry: ; OPT-NEXT: [[TMP0:%.*]] = load i64, i64* [[Y:%.*]], align 8 ; OPT-NEXT: [[AND:%.*]] = and i64 [[TMP0]], -8 ; OPT-NEXT: [[AND1:%.*]] = and i64 [[X:%.*]], 7 ; OPT-NEXT: [[OR:%.*]] = or i64 [[AND]], [[AND1]] ; OPT-NEXT: [[SHL:%.*]] = shl i64 [[OR]], 2 ; OPT-NEXT: store i64 [[SHL]], i64* [[Y]], align 8 ; OPT-NEXT: ret void ; entry: ; lsl is an alias of ubfm %0 = load i64, i64* %y, align 8 %and = and i64 %0, -8 %and1 = and i64 %x, 7 %or = or i64 %and, %and1 %shl = shl i64 %or, 2 store i64 %shl, i64* %y, align 8 ret void } define zeroext i1 @fct12bis(i32 %tmp2) unnamed_addr nounwind ssp align 2 { ; LLC-LABEL: fct12bis: ; LLC: // %bb.0: ; LLC-NEXT: ubfx w0, w0, #11, #1 ; LLC-NEXT: ret ; OPT-LABEL: @fct12bis( ; OPT-NEXT: [[AND_I_I:%.*]] = and i32 [[TMP2:%.*]], 2048 ; OPT-NEXT: [[TOBOOL_I_I:%.*]] = icmp ne i32 [[AND_I_I]], 0 ; OPT-NEXT: ret i1 [[TOBOOL_I_I]] ; %and.i.i = and i32 %tmp2, 2048 %tobool.i.i = icmp ne i32 %and.i.i, 0 ret i1 %tobool.i.i } ; Check if we can still catch bfm instruction when we drop some high bits ; and some low bits define void @fct12(i32* nocapture %y, i32 %x) nounwind optsize inlinehint ssp { ; LLC-LABEL: fct12: ; LLC: // %bb.0: // %entry ; LLC-NEXT: ldr w8, [x0] ; LLC-NEXT: bfxil w8, w1, #16, #3 ; LLC-NEXT: ubfx w8, w8, #2, #28 ; LLC-NEXT: str w8, [x0] ; LLC-NEXT: ret ; OPT-LABEL: @fct12( ; OPT-NEXT: entry: ; OPT-NEXT: [[TMP0:%.*]] = load i32, i32* [[Y:%.*]], align 8 ; OPT-NEXT: [[AND:%.*]] = and i32 [[TMP0]], -8 ; OPT-NEXT: [[SHR:%.*]] = lshr i32 [[X:%.*]], 16 ; OPT-NEXT: [[AND1:%.*]] = and i32 [[SHR]], 7 ; OPT-NEXT: [[OR:%.*]] = or i32 [[AND]], [[AND1]] ; OPT-NEXT: [[SHL:%.*]] = shl i32 [[OR]], 2 ; OPT-NEXT: [[SHR2:%.*]] = lshr i32 [[SHL]], 4 ; OPT-NEXT: store i32 [[SHR2]], i32* [[Y]], align 8 ; OPT-NEXT: ret void ; entry: ; lsr is an alias of ubfm %0 = load i32, i32* %y, align 8 %and = and i32 %0, -8 %shr = lshr i32 %x, 16 %and1 = and i32 %shr, 7 %or = or i32 %and, %and1 %shl = shl i32 %or, 2 %shr2 = lshr i32 %shl, 4 store i32 %shr2, i32* %y, align 8 ret void } define void @fct12_mask(i32* nocapture %y, i32 %x) nounwind optsize inlinehint ssp { ; LLC-LABEL: fct12_mask: ; LLC: // %bb.0: // %entry ; LLC-NEXT: ldr w8, [x0] ; LLC-NEXT: and w8, w8, #0x3ffffff8 ; LLC-NEXT: bfxil w8, w1, #16, #3 ; LLC-NEXT: lsr w8, w8, #2 ; LLC-NEXT: str w8, [x0] ; LLC-NEXT: ret ; OPT-LABEL: @fct12_mask( ; OPT-NEXT: entry: ; OPT-NEXT: [[TMP0:%.*]] = load i32, i32* [[Y:%.*]], align 8 ; OPT-NEXT: [[AND:%.*]] = and i32 [[TMP0]], -8 ; OPT-NEXT: [[SHR:%.*]] = lshr i32 [[X:%.*]], 16 ; OPT-NEXT: [[AND1:%.*]] = and i32 [[SHR]], 7 ; OPT-NEXT: [[OR:%.*]] = or i32 [[AND]], [[AND1]] ; OPT-NEXT: [[LSHR:%.*]] = lshr i32 [[OR]], 2 ; OPT-NEXT: [[MASK:%.*]] = and i32 [[LSHR]], 268435455 ; OPT-NEXT: store i32 [[MASK]], i32* [[Y]], align 8 ; OPT-NEXT: ret void ; entry: ; lsr is an alias of ubfm %0 = load i32, i32* %y, align 8 %and = and i32 %0, -8 %shr = lshr i32 %x, 16 %and1 = and i32 %shr, 7 %or = or i32 %and, %and1 %lshr = lshr i32 %or, 2 %mask = and i32 %lshr, 268435455 store i32 %mask, i32* %y, align 8 ret void } ; Check if we can still catch bfm instruction when we drop some high bits ; and some low bits ; (i64 version) define void @fct13(i64* nocapture %y, i64 %x) nounwind optsize inlinehint ssp { ; LLC-LABEL: fct13: ; LLC: // %bb.0: // %entry ; LLC-NEXT: ldr x8, [x0] ; LLC-NEXT: bfxil x8, x1, #16, #3 ; LLC-NEXT: ubfx x8, x8, #2, #60 ; LLC-NEXT: str x8, [x0] ; LLC-NEXT: ret ; OPT-LABEL: @fct13( ; OPT-NEXT: entry: ; OPT-NEXT: [[TMP0:%.*]] = load i64, i64* [[Y:%.*]], align 8 ; OPT-NEXT: [[AND:%.*]] = and i64 [[TMP0]], -8 ; OPT-NEXT: [[SHR:%.*]] = lshr i64 [[X:%.*]], 16 ; OPT-NEXT: [[AND1:%.*]] = and i64 [[SHR]], 7 ; OPT-NEXT: [[OR:%.*]] = or i64 [[AND]], [[AND1]] ; OPT-NEXT: [[SHL:%.*]] = shl i64 [[OR]], 2 ; OPT-NEXT: [[SHR2:%.*]] = lshr i64 [[SHL]], 4 ; OPT-NEXT: store i64 [[SHR2]], i64* [[Y]], align 8 ; OPT-NEXT: ret void ; entry: ; lsr is an alias of ubfm %0 = load i64, i64* %y, align 8 %and = and i64 %0, -8 %shr = lshr i64 %x, 16 %and1 = and i64 %shr, 7 %or = or i64 %and, %and1 %shl = shl i64 %or, 2 %shr2 = lshr i64 %shl, 4 store i64 %shr2, i64* %y, align 8 ret void } define void @fct13_mask(i64* nocapture %y, i64 %x) nounwind optsize inlinehint ssp { ; LLC-LABEL: fct13_mask: ; LLC: // %bb.0: // %entry ; LLC-NEXT: ldr x8, [x0] ; LLC-NEXT: and x8, x8, #0x3ffffffffffffff8 ; LLC-NEXT: bfxil x8, x1, #16, #3 ; LLC-NEXT: lsr x8, x8, #2 ; LLC-NEXT: str x8, [x0] ; LLC-NEXT: ret ; OPT-LABEL: @fct13_mask( ; OPT-NEXT: entry: ; OPT-NEXT: [[TMP0:%.*]] = load i64, i64* [[Y:%.*]], align 8 ; OPT-NEXT: [[AND:%.*]] = and i64 [[TMP0]], -8 ; OPT-NEXT: [[SHR:%.*]] = lshr i64 [[X:%.*]], 16 ; OPT-NEXT: [[AND1:%.*]] = and i64 [[SHR]], 7 ; OPT-NEXT: [[OR:%.*]] = or i64 [[AND]], [[AND1]] ; OPT-NEXT: [[LSHR:%.*]] = lshr i64 [[OR]], 2 ; OPT-NEXT: [[MASK:%.*]] = and i64 [[LSHR]], 1152921504606846975 ; OPT-NEXT: store i64 [[MASK]], i64* [[Y]], align 8 ; OPT-NEXT: ret void ; entry: ; lsr is an alias of ubfm %0 = load i64, i64* %y, align 8 %and = and i64 %0, -8 %shr = lshr i64 %x, 16 %and1 = and i64 %shr, 7 %or = or i64 %and, %and1 %lshr = lshr i64 %or, 2 %mask = and i64 %lshr, 1152921504606846975 store i64 %mask, i64* %y, align 8 ret void } ; Check if we can still catch bfm instruction when we drop some high bits ; and some low bits define void @fct14(i32* nocapture %y, i32 %x, i32 %x1) nounwind optsize inlinehint ssp { ; LLC-LABEL: fct14: ; LLC: // %bb.0: // %entry ; LLC-NEXT: ldr w8, [x0] ; LLC-NEXT: bfxil w8, w1, #16, #8 ; LLC-NEXT: lsr w8, w8, #4 ; LLC-NEXT: bfxil w8, w2, #5, #3 ; LLC-NEXT: lsl w8, w8, #2 ; LLC-NEXT: str w8, [x0] ; LLC-NEXT: ret ; OPT-LABEL: @fct14( ; OPT-NEXT: entry: ; OPT-NEXT: [[TMP0:%.*]] = load i32, i32* [[Y:%.*]], align 8 ; OPT-NEXT: [[AND:%.*]] = and i32 [[TMP0]], -256 ; OPT-NEXT: [[SHR:%.*]] = lshr i32 [[X:%.*]], 16 ; OPT-NEXT: [[AND1:%.*]] = and i32 [[SHR]], 255 ; OPT-NEXT: [[OR:%.*]] = or i32 [[AND]], [[AND1]] ; OPT-NEXT: [[SHL:%.*]] = lshr i32 [[OR]], 4 ; OPT-NEXT: [[AND2:%.*]] = and i32 [[SHL]], -8 ; OPT-NEXT: [[SHR1:%.*]] = lshr i32 [[X1:%.*]], 5 ; OPT-NEXT: [[AND3:%.*]] = and i32 [[SHR1]], 7 ; OPT-NEXT: [[OR1:%.*]] = or i32 [[AND2]], [[AND3]] ; OPT-NEXT: [[SHL1:%.*]] = shl i32 [[OR1]], 2 ; OPT-NEXT: store i32 [[SHL1]], i32* [[Y]], align 8 ; OPT-NEXT: ret void ; entry: ; lsr is an alias of ubfm ; lsl is an alias of ubfm %0 = load i32, i32* %y, align 8 %and = and i32 %0, -256 %shr = lshr i32 %x, 16 %and1 = and i32 %shr, 255 %or = or i32 %and, %and1 %shl = lshr i32 %or, 4 %and2 = and i32 %shl, -8 %shr1 = lshr i32 %x1, 5 %and3 = and i32 %shr1, 7 %or1 = or i32 %and2, %and3 %shl1 = shl i32 %or1, 2 store i32 %shl1, i32* %y, align 8 ret void } ; Check if we can still catch bfm instruction when we drop some high bits ; and some low bits ; (i64 version) define void @fct15(i64* nocapture %y, i64 %x, i64 %x1) nounwind optsize inlinehint ssp { ; LLC-LABEL: fct15: ; LLC: // %bb.0: // %entry ; LLC-NEXT: ldr x8, [x0] ; LLC-NEXT: bfxil x8, x1, #16, #8 ; LLC-NEXT: lsr x8, x8, #4 ; LLC-NEXT: bfxil x8, x2, #5, #3 ; LLC-NEXT: lsl x8, x8, #2 ; LLC-NEXT: str x8, [x0] ; LLC-NEXT: ret ; OPT-LABEL: @fct15( ; OPT-NEXT: entry: ; OPT-NEXT: [[TMP0:%.*]] = load i64, i64* [[Y:%.*]], align 8 ; OPT-NEXT: [[AND:%.*]] = and i64 [[TMP0]], -256 ; OPT-NEXT: [[SHR:%.*]] = lshr i64 [[X:%.*]], 16 ; OPT-NEXT: [[AND1:%.*]] = and i64 [[SHR]], 255 ; OPT-NEXT: [[OR:%.*]] = or i64 [[AND]], [[AND1]] ; OPT-NEXT: [[SHL:%.*]] = lshr i64 [[OR]], 4 ; OPT-NEXT: [[AND2:%.*]] = and i64 [[SHL]], -8 ; OPT-NEXT: [[SHR1:%.*]] = lshr i64 [[X1:%.*]], 5 ; OPT-NEXT: [[AND3:%.*]] = and i64 [[SHR1]], 7 ; OPT-NEXT: [[OR1:%.*]] = or i64 [[AND2]], [[AND3]] ; OPT-NEXT: [[SHL1:%.*]] = shl i64 [[OR1]], 2 ; OPT-NEXT: store i64 [[SHL1]], i64* [[Y]], align 8 ; OPT-NEXT: ret void ; entry: ; lsr is an alias of ubfm ; lsl is an alias of ubfm %0 = load i64, i64* %y, align 8 %and = and i64 %0, -256 %shr = lshr i64 %x, 16 %and1 = and i64 %shr, 255 %or = or i64 %and, %and1 %shl = lshr i64 %or, 4 %and2 = and i64 %shl, -8 %shr1 = lshr i64 %x1, 5 %and3 = and i64 %shr1, 7 %or1 = or i64 %and2, %and3 %shl1 = shl i64 %or1, 2 store i64 %shl1, i64* %y, align 8 ret void } ; Check if we can still catch bfm instruction when we drop some high bits ; and some low bits and a masking operation has to be kept define void @fct16(i32* nocapture %y, i32 %x) nounwind optsize inlinehint ssp { ; LLC-LABEL: fct16: ; LLC: // %bb.0: // %entry ; LLC-NEXT: ldr w8, [x0] ; LLC-NEXT: mov w9, #33120 ; LLC-NEXT: movk w9, #26, lsl #16 ; LLC-NEXT: and w8, w8, w9 ; LLC-NEXT: bfxil w8, w1, #16, #3 ; LLC-NEXT: ubfx w8, w8, #2, #28 ; LLC-NEXT: str w8, [x0] ; LLC-NEXT: ret ; OPT-LABEL: @fct16( ; OPT-NEXT: entry: ; OPT-NEXT: [[TMP0:%.*]] = load i32, i32* [[Y:%.*]], align 8 ; OPT-NEXT: [[AND:%.*]] = and i32 [[TMP0]], 1737056 ; OPT-NEXT: [[SHR:%.*]] = lshr i32 [[X:%.*]], 16 ; OPT-NEXT: [[AND1:%.*]] = and i32 [[SHR]], 7 ; OPT-NEXT: [[OR:%.*]] = or i32 [[AND]], [[AND1]] ; OPT-NEXT: [[SHL:%.*]] = shl i32 [[OR]], 2 ; OPT-NEXT: [[SHR2:%.*]] = lshr i32 [[SHL]], 4 ; OPT-NEXT: store i32 [[SHR2]], i32* [[Y]], align 8 ; OPT-NEXT: ret void ; entry: ; Create the constant ; Do the masking ; lsr is an alias of ubfm %0 = load i32, i32* %y, align 8 %and = and i32 %0, 1737056 %shr = lshr i32 %x, 16 %and1 = and i32 %shr, 7 %or = or i32 %and, %and1 %shl = shl i32 %or, 2 %shr2 = lshr i32 %shl, 4 store i32 %shr2, i32* %y, align 8 ret void } define void @fct16_mask(i32* nocapture %y, i32 %x) nounwind optsize inlinehint ssp { ; LLC-LABEL: fct16_mask: ; LLC: // %bb.0: // %entry ; LLC-NEXT: ldr w8, [x0] ; LLC-NEXT: mov w9, #33120 ; LLC-NEXT: movk w9, #26, lsl #16 ; LLC-NEXT: and w8, w8, w9 ; LLC-NEXT: bfxil w8, w1, #16, #3 ; LLC-NEXT: lsr w8, w8, #2 ; LLC-NEXT: str w8, [x0] ; LLC-NEXT: ret ; OPT-LABEL: @fct16_mask( ; OPT-NEXT: entry: ; OPT-NEXT: [[TMP0:%.*]] = load i32, i32* [[Y:%.*]], align 8 ; OPT-NEXT: [[AND:%.*]] = and i32 [[TMP0]], 1737056 ; OPT-NEXT: [[SHR:%.*]] = lshr i32 [[X:%.*]], 16 ; OPT-NEXT: [[AND1:%.*]] = and i32 [[SHR]], 7 ; OPT-NEXT: [[OR:%.*]] = or i32 [[AND]], [[AND1]] ; OPT-NEXT: [[LSHR:%.*]] = lshr i32 [[OR]], 2 ; OPT-NEXT: [[MASK:%.*]] = and i32 [[LSHR]], 268435455 ; OPT-NEXT: store i32 [[MASK]], i32* [[Y]], align 8 ; OPT-NEXT: ret void ; entry: ; Create the constant ; Do the masking ; lsr is an alias of ubfm %0 = load i32, i32* %y, align 8 %and = and i32 %0, 1737056 %shr = lshr i32 %x, 16 %and1 = and i32 %shr, 7 %or = or i32 %and, %and1 %lshr = lshr i32 %or, 2 %mask = and i32 %lshr, 268435455 store i32 %mask, i32* %y, align 8 ret void } ; Check if we can still catch bfm instruction when we drop some high bits ; and some low bits and a masking operation has to be kept ; (i64 version) define void @fct17(i64* nocapture %y, i64 %x) nounwind optsize inlinehint ssp { ; LLC-LABEL: fct17: ; LLC: // %bb.0: // %entry ; LLC-NEXT: ldr x8, [x0] ; LLC-NEXT: mov w9, #33120 ; LLC-NEXT: movk w9, #26, lsl #16 ; LLC-NEXT: and x8, x8, x9 ; LLC-NEXT: bfxil x8, x1, #16, #3 ; LLC-NEXT: ubfx x8, x8, #2, #60 ; LLC-NEXT: str x8, [x0] ; LLC-NEXT: ret ; OPT-LABEL: @fct17( ; OPT-NEXT: entry: ; OPT-NEXT: [[TMP0:%.*]] = load i64, i64* [[Y:%.*]], align 8 ; OPT-NEXT: [[AND:%.*]] = and i64 [[TMP0]], 1737056 ; OPT-NEXT: [[SHR:%.*]] = lshr i64 [[X:%.*]], 16 ; OPT-NEXT: [[AND1:%.*]] = and i64 [[SHR]], 7 ; OPT-NEXT: [[OR:%.*]] = or i64 [[AND]], [[AND1]] ; OPT-NEXT: [[SHL:%.*]] = shl i64 [[OR]], 2 ; OPT-NEXT: [[SHR2:%.*]] = lshr i64 [[SHL]], 4 ; OPT-NEXT: store i64 [[SHR2]], i64* [[Y]], align 8 ; OPT-NEXT: ret void ; entry: ; Create the constant ; Do the masking ; lsr is an alias of ubfm %0 = load i64, i64* %y, align 8 %and = and i64 %0, 1737056 %shr = lshr i64 %x, 16 %and1 = and i64 %shr, 7 %or = or i64 %and, %and1 %shl = shl i64 %or, 2 %shr2 = lshr i64 %shl, 4 store i64 %shr2, i64* %y, align 8 ret void } define void @fct17_mask(i64* nocapture %y, i64 %x) nounwind optsize inlinehint ssp { ; LLC-LABEL: fct17_mask: ; LLC: // %bb.0: // %entry ; LLC-NEXT: ldr x8, [x0] ; LLC-NEXT: mov w9, #33120 ; LLC-NEXT: movk w9, #26, lsl #16 ; LLC-NEXT: and x8, x8, x9 ; LLC-NEXT: bfxil x8, x1, #16, #3 ; LLC-NEXT: lsr x8, x8, #2 ; LLC-NEXT: str x8, [x0] ; LLC-NEXT: ret ; OPT-LABEL: @fct17_mask( ; OPT-NEXT: entry: ; OPT-NEXT: [[TMP0:%.*]] = load i64, i64* [[Y:%.*]], align 8 ; OPT-NEXT: [[AND:%.*]] = and i64 [[TMP0]], 1737056 ; OPT-NEXT: [[SHR:%.*]] = lshr i64 [[X:%.*]], 16 ; OPT-NEXT: [[AND1:%.*]] = and i64 [[SHR]], 7 ; OPT-NEXT: [[OR:%.*]] = or i64 [[AND]], [[AND1]] ; OPT-NEXT: [[LSHR:%.*]] = lshr i64 [[OR]], 2 ; OPT-NEXT: [[MASK:%.*]] = and i64 [[LSHR]], 1152921504606846975 ; OPT-NEXT: store i64 [[MASK]], i64* [[Y]], align 8 ; OPT-NEXT: ret void ; entry: ; Create the constant ; Do the masking ; lsr is an alias of ubfm %0 = load i64, i64* %y, align 8 %and = and i64 %0, 1737056 %shr = lshr i64 %x, 16 %and1 = and i64 %shr, 7 %or = or i64 %and, %and1 %lshr = lshr i64 %or, 2 %mask = and i64 %lshr, 1152921504606846975 store i64 %mask, i64* %y, align 8 ret void } define i64 @fct18(i32 %xor72) nounwind ssp { ; LLC-LABEL: fct18: ; LLC: // %bb.0: ; LLC-NEXT: // kill: def $w0 killed $w0 def $x0 ; LLC-NEXT: ubfx x0, x0, #9, #8 ; LLC-NEXT: ret ; OPT-LABEL: @fct18( ; OPT-NEXT: [[SHR81:%.*]] = lshr i32 [[XOR72:%.*]], 9 ; OPT-NEXT: [[CONV82:%.*]] = zext i32 [[SHR81]] to i64 ; OPT-NEXT: [[RESULT:%.*]] = and i64 [[CONV82]], 255 ; OPT-NEXT: ret i64 [[RESULT]] ; %shr81 = lshr i32 %xor72, 9 %conv82 = zext i32 %shr81 to i64 %result = and i64 %conv82, 255 ret i64 %result } ; Using the access to the global array to keep the instruction and control flow. @first_ones = external dso_local global [65536 x i8] ; Function Attrs: nounwind readonly ssp define i32 @fct19(i64 %arg1) nounwind readonly ssp { ; LLC-LABEL: fct19: ; LLC: // %bb.0: // %entry ; LLC-NEXT: lsr x8, x0, #48 ; LLC-NEXT: cbz x8, .LBB26_2 ; LLC-NEXT: // %bb.1: // %if.then ; LLC-NEXT: adrp x9, first_ones ; LLC-NEXT: add x9, x9, :lo12:first_ones ; LLC-NEXT: ldrb w0, [x9, x8] ; LLC-NEXT: ret ; LLC-NEXT: .LBB26_2: // %if.end ; LLC-NEXT: ubfx x8, x0, #32, #16 ; LLC-NEXT: cbz w8, .LBB26_4 ; LLC-NEXT: // %bb.3: // %if.then7 ; LLC-NEXT: adrp x9, first_ones ; LLC-NEXT: add x9, x9, :lo12:first_ones ; LLC-NEXT: ldrb w8, [x9, x8] ; LLC-NEXT: add w0, w8, #16 // =16 ; LLC-NEXT: ret ; LLC-NEXT: .LBB26_4: // %if.end13 ; LLC-NEXT: ubfx x8, x0, #16, #16 ; LLC-NEXT: cbz w8, .LBB26_6 ; LLC-NEXT: // %bb.5: // %if.then17 ; LLC-NEXT: adrp x9, first_ones ; LLC-NEXT: add x9, x9, :lo12:first_ones ; LLC-NEXT: ldrb w8, [x9, x8] ; LLC-NEXT: add w0, w8, #32 // =32 ; LLC-NEXT: ret ; LLC-NEXT: .LBB26_6: ; LLC-NEXT: mov w0, #64 ; LLC-NEXT: ret ; OPT-LABEL: @fct19( ; OPT-NEXT: entry: ; OPT-NEXT: [[X_SROA_1_0_EXTRACT_SHIFT:%.*]] = lshr i64 [[ARG1:%.*]], 16 ; OPT-NEXT: [[X_SROA_1_0_EXTRACT_TRUNC:%.*]] = trunc i64 [[X_SROA_1_0_EXTRACT_SHIFT]] to i16 ; OPT-NEXT: [[X_SROA_5_0_EXTRACT_SHIFT:%.*]] = lshr i64 [[ARG1]], 48 ; OPT-NEXT: [[TOBOOL:%.*]] = icmp eq i64 [[X_SROA_5_0_EXTRACT_SHIFT]], 0 ; OPT-NEXT: br i1 [[TOBOOL]], label [[IF_END:%.*]], label [[IF_THEN:%.*]] ; OPT: if.then: ; OPT-NEXT: [[ARRAYIDX3:%.*]] = getelementptr inbounds [65536 x i8], [65536 x i8]* @first_ones, i64 0, i64 [[X_SROA_5_0_EXTRACT_SHIFT]] ; OPT-NEXT: [[TMP0:%.*]] = load i8, i8* [[ARRAYIDX3]], align 1 ; OPT-NEXT: [[CONV:%.*]] = zext i8 [[TMP0]] to i32 ; OPT-NEXT: br label [[RETURN:%.*]] ; OPT: if.end: ; OPT-NEXT: [[TMP1:%.*]] = lshr i64 [[ARG1]], 32 ; OPT-NEXT: [[X_SROA_3_0_EXTRACT_TRUNC:%.*]] = trunc i64 [[TMP1]] to i16 ; OPT-NEXT: [[TOBOOL6:%.*]] = icmp eq i16 [[X_SROA_3_0_EXTRACT_TRUNC]], 0 ; OPT-NEXT: br i1 [[TOBOOL6]], label [[IF_END13:%.*]], label [[IF_THEN7:%.*]] ; OPT: if.then7: ; OPT-NEXT: [[TMP2:%.*]] = lshr i64 [[ARG1]], 32 ; OPT-NEXT: [[IDXPROM10:%.*]] = and i64 [[TMP2]], 65535 ; OPT-NEXT: [[ARRAYIDX11:%.*]] = getelementptr inbounds [65536 x i8], [65536 x i8]* @first_ones, i64 0, i64 [[IDXPROM10]] ; OPT-NEXT: [[TMP3:%.*]] = load i8, i8* [[ARRAYIDX11]], align 1 ; OPT-NEXT: [[CONV12:%.*]] = zext i8 [[TMP3]] to i32 ; OPT-NEXT: [[ADD:%.*]] = add nsw i32 [[CONV12]], 16 ; OPT-NEXT: br label [[RETURN]] ; OPT: if.end13: ; OPT-NEXT: [[TMP4:%.*]] = lshr i64 [[ARG1]], 16 ; OPT-NEXT: [[TMP5:%.*]] = trunc i64 [[TMP4]] to i16 ; OPT-NEXT: [[TOBOOL16:%.*]] = icmp eq i16 [[TMP5]], 0 ; OPT-NEXT: br i1 [[TOBOOL16]], label [[RETURN]], label [[IF_THEN17:%.*]] ; OPT: if.then17: ; OPT-NEXT: [[TMP6:%.*]] = lshr i64 [[ARG1]], 16 ; OPT-NEXT: [[IDXPROM20:%.*]] = and i64 [[TMP6]], 65535 ; OPT-NEXT: [[ARRAYIDX21:%.*]] = getelementptr inbounds [65536 x i8], [65536 x i8]* @first_ones, i64 0, i64 [[IDXPROM20]] ; OPT-NEXT: [[TMP7:%.*]] = load i8, i8* [[ARRAYIDX21]], align 1 ; OPT-NEXT: [[CONV22:%.*]] = zext i8 [[TMP7]] to i32 ; OPT-NEXT: [[ADD23:%.*]] = add nsw i32 [[CONV22]], 32 ; OPT-NEXT: br label [[RETURN]] ; OPT: return: ; OPT-NEXT: [[RETVAL_0:%.*]] = phi i32 [ [[CONV]], [[IF_THEN]] ], [ [[ADD]], [[IF_THEN7]] ], [ [[ADD23]], [[IF_THEN17]] ], [ 64, [[IF_END13]] ] ; OPT-NEXT: ret i32 [[RETVAL_0]] ; entry: %x.sroa.1.0.extract.shift = lshr i64 %arg1, 16 %x.sroa.1.0.extract.trunc = trunc i64 %x.sroa.1.0.extract.shift to i16 %x.sroa.3.0.extract.shift = lshr i64 %arg1, 32 %x.sroa.5.0.extract.shift = lshr i64 %arg1, 48 %tobool = icmp eq i64 %x.sroa.5.0.extract.shift, 0 br i1 %tobool, label %if.end, label %if.then if.then: ; preds = %entry %arrayidx3 = getelementptr inbounds [65536 x i8], [65536 x i8]* @first_ones, i64 0, i64 %x.sroa.5.0.extract.shift %0 = load i8, i8* %arrayidx3, align 1 %conv = zext i8 %0 to i32 br label %return if.end: ; preds = %entry %x.sroa.3.0.extract.trunc = trunc i64 %x.sroa.3.0.extract.shift to i16 %tobool6 = icmp eq i16 %x.sroa.3.0.extract.trunc, 0 br i1 %tobool6, label %if.end13, label %if.then7 if.then7: ; preds = %if.end ; "and" should be combined to "ubfm" while "ubfm" should be removed by cse. ; So neither of them should be in the assemble code. %idxprom10 = and i64 %x.sroa.3.0.extract.shift, 65535 %arrayidx11 = getelementptr inbounds [65536 x i8], [65536 x i8]* @first_ones, i64 0, i64 %idxprom10 %1 = load i8, i8* %arrayidx11, align 1 %conv12 = zext i8 %1 to i32 %add = add nsw i32 %conv12, 16 br label %return if.end13: ; preds = %if.end %tobool16 = icmp eq i16 %x.sroa.1.0.extract.trunc, 0 br i1 %tobool16, label %return, label %if.then17 if.then17: ; preds = %if.end13 ; "and" should be combined to "ubfm" while "ubfm" should be removed by cse. ; So neither of them should be in the assemble code. %idxprom20 = and i64 %x.sroa.1.0.extract.shift, 65535 %arrayidx21 = getelementptr inbounds [65536 x i8], [65536 x i8]* @first_ones, i64 0, i64 %idxprom20 %2 = load i8, i8* %arrayidx21, align 1 %conv22 = zext i8 %2 to i32 %add23 = add nsw i32 %conv22, 32 br label %return return: ; preds = %if.end13, %if.then17, %if.then7, %if.then %retval.0 = phi i32 [ %conv, %if.then ], [ %add, %if.then7 ], [ %add23, %if.then17 ], [ 64, %if.end13 ] ret i32 %retval.0 } ; Make sure we do not assert if the immediate in and is bigger than i64. ; PR19503. define i80 @fct20(i128 %a, i128 %b) { ; LLC-LABEL: fct20: ; LLC: // %bb.0: // %entry ; LLC-NEXT: mov x12, #11776 ; LLC-NEXT: movk x12, #25856, lsl #16 ; LLC-NEXT: movk x12, #11077, lsl #32 ; LLC-NEXT: extr x8, x1, x0, #18 ; LLC-NEXT: lsr x9, x1, #18 ; LLC-NEXT: orr x10, x2, x3 ; LLC-NEXT: mov w11, #26220 ; LLC-NEXT: movk x12, #45, lsl #48 ; LLC-NEXT: and x11, x9, x11 ; LLC-NEXT: and x12, x8, x12 ; LLC-NEXT: cmp x10, #0 // =0 ; LLC-NEXT: csel x0, x12, x8, eq ; LLC-NEXT: csel x1, x11, x9, eq ; LLC-NEXT: ret ; OPT-LABEL: @fct20( ; OPT-NEXT: entry: ; OPT-NEXT: [[SHR:%.*]] = lshr i128 [[A:%.*]], 18 ; OPT-NEXT: [[CONV:%.*]] = trunc i128 [[SHR]] to i80 ; OPT-NEXT: [[TOBOOL:%.*]] = icmp eq i128 [[B:%.*]], 0 ; OPT-NEXT: br i1 [[TOBOOL]], label [[THEN:%.*]], label [[END:%.*]] ; OPT: then: ; OPT-NEXT: [[AND:%.*]] = and i128 [[SHR]], 483673642326615442599424 ; OPT-NEXT: [[CONV2:%.*]] = trunc i128 [[AND]] to i80 ; OPT-NEXT: br label [[END]] ; OPT: end: ; OPT-NEXT: [[CONV3:%.*]] = phi i80 [ [[CONV]], [[ENTRY:%.*]] ], [ [[CONV2]], [[THEN]] ] ; OPT-NEXT: ret i80 [[CONV3]] ; entry: %shr = lshr i128 %a, 18 %conv = trunc i128 %shr to i80 %tobool = icmp eq i128 %b, 0 br i1 %tobool, label %then, label %end then: %and = and i128 %shr, 483673642326615442599424 %conv2 = trunc i128 %and to i80 br label %end end: %conv3 = phi i80 [%conv, %entry], [%conv2, %then] ret i80 %conv3 } ; Check if we can still catch UBFX when "AND" is used by SHL. @arr = external dso_local global [8 x [64 x i64]] define i64 @fct21(i64 %x) { ; LLC-LABEL: fct21: ; LLC: // %bb.0: // %entry ; LLC-NEXT: adrp x9, arr ; LLC-NEXT: ubfx x8, x0, #4, #4 ; LLC-NEXT: add x9, x9, :lo12:arr ; LLC-NEXT: ldr x0, [x9, x8, lsl #3] ; LLC-NEXT: ret ; OPT-LABEL: @fct21( ; OPT-NEXT: entry: ; OPT-NEXT: [[SHR:%.*]] = lshr i64 [[X:%.*]], 4 ; OPT-NEXT: [[AND:%.*]] = and i64 [[SHR]], 15 ; OPT-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [8 x [64 x i64]], [8 x [64 x i64]]* @arr, i64 0, i64 0, i64 [[AND]] ; OPT-NEXT: [[TMP0:%.*]] = load i64, i64* [[ARRAYIDX]], align 8 ; OPT-NEXT: ret i64 [[TMP0]] ; entry: %shr = lshr i64 %x, 4 %and = and i64 %shr, 15 %arrayidx = getelementptr inbounds [8 x [64 x i64]], [8 x [64 x i64]]* @arr, i64 0, i64 0, i64 %and %0 = load i64, i64* %arrayidx, align 8 ret i64 %0 } define i16 @test_ignored_rightbits(i32 %dst, i32 %in) { ; LLC-LABEL: test_ignored_rightbits: ; LLC: // %bb.0: ; LLC-NEXT: and w0, w0, #0x7 ; LLC-NEXT: bfi w0, w1, #3, #4 ; LLC-NEXT: bfi w0, w0, #8, #7 ; LLC-NEXT: ret ; OPT-LABEL: @test_ignored_rightbits( ; OPT-NEXT: [[POSITIONED_FIELD:%.*]] = shl i32 [[IN:%.*]], 3 ; OPT-NEXT: [[POSITIONED_MASKED_FIELD:%.*]] = and i32 [[POSITIONED_FIELD]], 120 ; OPT-NEXT: [[MASKED_DST:%.*]] = and i32 [[DST:%.*]], 7 ; OPT-NEXT: [[INSERTION:%.*]] = or i32 [[MASKED_DST]], [[POSITIONED_MASKED_FIELD]] ; OPT-NEXT: [[SHL16:%.*]] = shl i32 [[INSERTION]], 8 ; OPT-NEXT: [[OR18:%.*]] = or i32 [[SHL16]], [[INSERTION]] ; OPT-NEXT: [[CONV19:%.*]] = trunc i32 [[OR18]] to i16 ; OPT-NEXT: ret i16 [[CONV19]] ; %positioned_field = shl i32 %in, 3 %positioned_masked_field = and i32 %positioned_field, 120 %masked_dst = and i32 %dst, 7 %insertion = or i32 %masked_dst, %positioned_masked_field %shl16 = shl i32 %insertion, 8 %or18 = or i32 %shl16, %insertion %conv19 = trunc i32 %or18 to i16 ret i16 %conv19 } ; The following test excercises the case where we have a BFI ; instruction with the same input in both operands. We need to ; track the useful bits through both operands. define void @sameOperandBFI(i64 %src, i64 %src2, i16 *%ptr) { ; LLC-LABEL: sameOperandBFI: ; LLC: // %bb.0: // %entry ; LLC-NEXT: cbnz wzr, .LBB30_2 ; LLC-NEXT: // %bb.1: // %if.else ; LLC-NEXT: lsr x8, x0, #47 ; LLC-NEXT: and w9, w1, #0x3 ; LLC-NEXT: bfi w9, w8, #2, #2 ; LLC-NEXT: bfi w9, w9, #4, #4 ; LLC-NEXT: strh w9, [x2] ; LLC-NEXT: .LBB30_2: // %end ; LLC-NEXT: ret ; OPT-LABEL: @sameOperandBFI( ; OPT-NEXT: entry: ; OPT-NEXT: [[SHR47:%.*]] = lshr i64 [[SRC:%.*]], 47 ; OPT-NEXT: [[SRC2_TRUNC:%.*]] = trunc i64 [[SRC2:%.*]] to i32 ; OPT-NEXT: br i1 undef, label [[END:%.*]], label [[IF_ELSE:%.*]] ; OPT: if.else: ; OPT-NEXT: [[AND3:%.*]] = and i32 [[SRC2_TRUNC]], 3 ; OPT-NEXT: [[SHL2:%.*]] = shl nuw nsw i64 [[SHR47]], 2 ; OPT-NEXT: [[SHL2_TRUNC:%.*]] = trunc i64 [[SHL2]] to i32 ; OPT-NEXT: [[AND12:%.*]] = and i32 [[SHL2_TRUNC]], 12 ; OPT-NEXT: [[BFISOURCE:%.*]] = or i32 [[AND3]], [[AND12]] ; OPT-NEXT: [[BFIRHS:%.*]] = shl nuw nsw i32 [[BFISOURCE]], 4 ; OPT-NEXT: [[BFI:%.*]] = or i32 [[BFIRHS]], [[BFISOURCE]] ; OPT-NEXT: [[BFITRUNC:%.*]] = trunc i32 [[BFI]] to i16 ; OPT-NEXT: store i16 [[BFITRUNC]], i16* [[PTR:%.*]], align 4 ; OPT-NEXT: br label [[END]] ; OPT: end: ; OPT-NEXT: ret void ; entry: %shr47 = lshr i64 %src, 47 %src2.trunc = trunc i64 %src2 to i32 br i1 undef, label %end, label %if.else if.else: %and3 = and i32 %src2.trunc, 3 %shl2 = shl nuw nsw i64 %shr47, 2 %shl2.trunc = trunc i64 %shl2 to i32 %and12 = and i32 %shl2.trunc, 12 %BFISource = or i32 %and3, %and12 ; ...00000ABCD %BFIRHS = shl nuw nsw i32 %BFISource, 4 ; ...0ABCD0000 %BFI = or i32 %BFIRHS, %BFISource ; ...0ABCDABCD %BFItrunc = trunc i32 %BFI to i16 store i16 %BFItrunc, i16* %ptr, align 4 br label %end end: ret void }