381 lines
18 KiB
LLVM
381 lines
18 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s | FileCheck %s
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target triple = "thumbv6m-unknown-unknown-eabi"
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define void @vla_emergency_spill(i32 %n) {
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; CHECK-LABEL: vla_emergency_spill:
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; CHECK: @ %bb.0: @ %entry
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; CHECK-NEXT: .save {r4, r5, r6, r7, lr}
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; CHECK-NEXT: push {r4, r5, r6, r7, lr}
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; CHECK-NEXT: .setfp r7, sp, #12
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; CHECK-NEXT: add r7, sp, #12
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; CHECK-NEXT: ldr r6, .LCPI0_0
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; CHECK-NEXT: .pad #4100
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; CHECK-NEXT: add sp, r6
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; CHECK-NEXT: mov r6, sp
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; CHECK-NEXT: adds r0, r0, #7
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; CHECK-NEXT: movs r1, #7
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; CHECK-NEXT: bics r0, r1
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; CHECK-NEXT: mov r1, sp
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; CHECK-NEXT: subs r0, r1, r0
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; CHECK-NEXT: mov sp, r0
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; CHECK-NEXT: adds r1, r6, #4
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; CHECK-NEXT: @APP
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; CHECK-NEXT: @NO_APP
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; CHECK-NEXT: str r0, [r6]
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; CHECK-NEXT: ldr r0, .LCPI0_1
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; CHECK-NEXT: str r5, [r0, r6]
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; CHECK-NEXT: ldr r0, [r6]
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; CHECK-NEXT: @APP
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; CHECK-NEXT: @NO_APP
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; CHECK-NEXT: subs r4, r7, #7
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; CHECK-NEXT: subs r4, #5
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; CHECK-NEXT: mov sp, r4
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; CHECK-NEXT: pop {r4, r5, r6, r7, pc}
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; CHECK-NEXT: .p2align 2
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; CHECK-NEXT: @ %bb.1:
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; CHECK-NEXT: .LCPI0_0:
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; CHECK-NEXT: .long 4294963196 @ 0xffffeffc
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; CHECK-NEXT: .LCPI0_1:
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; CHECK-NEXT: .long 1024 @ 0x400
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entry:
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%x = alloca [1024 x i32], align 4
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%vla = alloca i8, i32 %n, align 1
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%asm1 = call { i32, i32, i32, i32, i32, i32 } asm "", "={r0},={r1},={r2},={r3},={r4},={r5},0,1,2,3,4,5"(i8* %vla, [1024 x i32]* %x, i32 undef, i32 undef, i32 undef, i32 undef)
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%asmresult = extractvalue { i32, i32, i32, i32, i32, i32 } %asm1, 0
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%asmresult1 = extractvalue { i32, i32, i32, i32, i32, i32 } %asm1, 1
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%asmresult2 = extractvalue { i32, i32, i32, i32, i32, i32 } %asm1, 2
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%asmresult3 = extractvalue { i32, i32, i32, i32, i32, i32 } %asm1, 3
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%asmresult4 = extractvalue { i32, i32, i32, i32, i32, i32 } %asm1, 4
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%asmresult5 = extractvalue { i32, i32, i32, i32, i32, i32 } %asm1, 5
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%arrayidx = getelementptr inbounds [1024 x i32], [1024 x i32]* %x, i32 0, i32 255
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store i32 %asmresult5, i32* %arrayidx, align 4
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call void asm sideeffect "", "{r0},{r1},{r2},{r3},{r4},{r5}"(i32 %asmresult, i32 %asmresult1, i32 %asmresult2, i32 %asmresult3, i32 %asmresult4, i32 %asmresult5) #2
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ret void
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}
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define void @simple_emergency_spill(i32 %n) {
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; CHECK-LABEL: simple_emergency_spill:
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; CHECK: @ %bb.0: @ %entry
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; CHECK-NEXT: .save {r4, r5, r6, r7, lr}
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; CHECK-NEXT: push {r4, r5, r6, r7, lr}
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; CHECK-NEXT: ldr r7, .LCPI1_0
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; CHECK-NEXT: .pad #8196
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; CHECK-NEXT: add sp, r7
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; CHECK-NEXT: add r0, sp, #4
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; CHECK-NEXT: ldr r1, .LCPI1_2
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; CHECK-NEXT: add r1, sp
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; CHECK-NEXT: @APP
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; CHECK-NEXT: @NO_APP
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; CHECK-NEXT: str r0, [sp]
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; CHECK-NEXT: ldr r0, .LCPI1_3
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; CHECK-NEXT: add r0, sp
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; CHECK-NEXT: str r5, [r0]
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; CHECK-NEXT: ldr r0, [sp]
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; CHECK-NEXT: @APP
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; CHECK-NEXT: @NO_APP
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; CHECK-NEXT: ldr r7, .LCPI1_1
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; CHECK-NEXT: add sp, r7
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; CHECK-NEXT: pop {r4, r5, r6, r7, pc}
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; CHECK-NEXT: .p2align 2
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; CHECK-NEXT: @ %bb.1:
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; CHECK-NEXT: .LCPI1_0:
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; CHECK-NEXT: .long 4294959100 @ 0xffffdffc
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; CHECK-NEXT: .LCPI1_1:
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; CHECK-NEXT: .long 8196 @ 0x2004
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; CHECK-NEXT: .LCPI1_2:
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; CHECK-NEXT: .long 4100 @ 0x1004
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; CHECK-NEXT: .LCPI1_3:
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; CHECK-NEXT: .long 5120 @ 0x1400
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entry:
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%x = alloca [1024 x i32], align 4
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%y = alloca [1024 x i32], align 4
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%asm1 = call { i32, i32, i32, i32, i32, i32, i32, i32 } asm "", "={r0},={r1},={r2},={r3},={r4},={r5},={r6},={r7},0,1,2,3,4,5,6,7"([1024 x i32]* %y, [1024 x i32]* %x, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef)
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%asmresult = extractvalue { i32, i32, i32, i32, i32, i32, i32, i32 } %asm1, 0
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%asmresult2 = extractvalue { i32, i32, i32, i32, i32, i32, i32, i32 } %asm1, 1
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%asmresult3 = extractvalue { i32, i32, i32, i32, i32, i32, i32, i32 } %asm1, 2
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%asmresult4 = extractvalue { i32, i32, i32, i32, i32, i32, i32, i32 } %asm1, 3
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%asmresult5 = extractvalue { i32, i32, i32, i32, i32, i32, i32, i32 } %asm1, 4
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%asmresult6 = extractvalue { i32, i32, i32, i32, i32, i32, i32, i32 } %asm1, 5
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%asmresult7 = extractvalue { i32, i32, i32, i32, i32, i32, i32, i32 } %asm1, 6
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%asmresult8 = extractvalue { i32, i32, i32, i32, i32, i32, i32, i32 } %asm1, 7
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%arrayidx = getelementptr inbounds [1024 x i32], [1024 x i32]* %x, i32 0, i32 255
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store i32 %asmresult6, i32* %arrayidx, align 4
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call void asm sideeffect "", "{r0},{r1},{r2},{r3},{r4},{r5},{r6},{r7}"(i32 %asmresult, i32 %asmresult2, i32 %asmresult3, i32 %asmresult4, i32 %asmresult5, i32 %asmresult6, i32 %asmresult7, i32 %asmresult8)
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ret void
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}
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; We have some logic to try to spill registers instead of allocating an
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; emergency spill slot, but for targets where the stack alignment is 8,
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; it only triggers when there are two available registers. (This is
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; maybe worth looking into, to improve the generated code quality.)
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;
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; The scavenger itself only cares whether a register is allocatable, not
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; whether it was actually spilled in the prologue, and r7 is first on
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; the priority list, so we use it anyway. This is likely to confuse
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; debuggers, so maybe worth changing at some point.
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define void @simple_emergency_spill_nor7(i32 %n) {
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; CHECK-LABEL: simple_emergency_spill_nor7:
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; CHECK: @ %bb.0: @ %entry
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; CHECK-NEXT: .save {r4, r5, r6, lr}
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; CHECK-NEXT: push {r4, r5, r6, lr}
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; CHECK-NEXT: ldr r6, .LCPI2_0
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; CHECK-NEXT: .pad #8196
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; CHECK-NEXT: add sp, r6
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; CHECK-NEXT: add r0, sp, #4
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; CHECK-NEXT: ldr r1, .LCPI2_2
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; CHECK-NEXT: add r1, sp
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; CHECK-NEXT: @APP
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; CHECK-NEXT: @NO_APP
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; CHECK-NEXT: str r7, [sp]
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; CHECK-NEXT: ldr r7, .LCPI2_3
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; CHECK-NEXT: add r7, sp
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; CHECK-NEXT: str r5, [r7]
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; CHECK-NEXT: ldr r7, [sp]
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; CHECK-NEXT: @APP
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; CHECK-NEXT: @NO_APP
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; CHECK-NEXT: ldr r6, .LCPI2_1
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; CHECK-NEXT: add sp, r6
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; CHECK-NEXT: pop {r4, r5, r6, pc}
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; CHECK-NEXT: .p2align 2
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; CHECK-NEXT: @ %bb.1:
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; CHECK-NEXT: .LCPI2_0:
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; CHECK-NEXT: .long 4294959100 @ 0xffffdffc
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; CHECK-NEXT: .LCPI2_1:
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; CHECK-NEXT: .long 8196 @ 0x2004
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; CHECK-NEXT: .LCPI2_2:
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; CHECK-NEXT: .long 4100 @ 0x1004
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; CHECK-NEXT: .LCPI2_3:
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; CHECK-NEXT: .long 5120 @ 0x1400
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entry:
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%x = alloca [1024 x i32], align 4
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%y = alloca [1024 x i32], align 4
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%asm1 = call { i32, i32, i32, i32, i32, i32, i32 } asm "", "={r0},={r1},={r2},={r3},={r4},={r5},={r6},0,1,2,3,4,5,6"([1024 x i32]* %y, [1024 x i32]* %x, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef)
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%asmresult = extractvalue { i32, i32, i32, i32, i32, i32, i32 } %asm1, 0
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%asmresult2 = extractvalue { i32, i32, i32, i32, i32, i32, i32 } %asm1, 1
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%asmresult3 = extractvalue { i32, i32, i32, i32, i32, i32, i32 } %asm1, 2
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%asmresult4 = extractvalue { i32, i32, i32, i32, i32, i32, i32 } %asm1, 3
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%asmresult5 = extractvalue { i32, i32, i32, i32, i32, i32, i32 } %asm1, 4
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%asmresult6 = extractvalue { i32, i32, i32, i32, i32, i32, i32 } %asm1, 5
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%asmresult7 = extractvalue { i32, i32, i32, i32, i32, i32, i32 } %asm1, 6
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%arrayidx = getelementptr inbounds [1024 x i32], [1024 x i32]* %x, i32 0, i32 255
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store i32 %asmresult6, i32* %arrayidx, align 4
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call void asm sideeffect "", "{r0},{r1},{r2},{r3},{r4},{r5},{r6}"(i32 %asmresult, i32 %asmresult2, i32 %asmresult3, i32 %asmresult4, i32 %asmresult5, i32 %asmresult6, i32 %asmresult7)
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ret void
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}
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define void @arg_emergency_spill(i32 %n, i32 %n2, i32 %n3, i32 %n4, [252 x i32]* byval([252 x i32]) %p) {
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; CHECK-LABEL: arg_emergency_spill:
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; CHECK: @ %bb.0: @ %entry
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; CHECK-NEXT: .save {r4, r5, r6, r7, lr}
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; CHECK-NEXT: push {r4, r5, r6, r7, lr}
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; CHECK-NEXT: .pad #4
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; CHECK-NEXT: sub sp, #4
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; CHECK-NEXT: add r0, sp, #24
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; CHECK-NEXT: @APP
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; CHECK-NEXT: @NO_APP
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; CHECK-NEXT: str r0, [sp]
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; CHECK-NEXT: ldr r0, .LCPI3_0
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; CHECK-NEXT: add r0, sp
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; CHECK-NEXT: str r5, [r0]
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; CHECK-NEXT: ldr r0, [sp]
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; CHECK-NEXT: @APP
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; CHECK-NEXT: @NO_APP
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; CHECK-NEXT: add sp, #4
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; CHECK-NEXT: pop {r4, r5, r6, r7, pc}
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; CHECK-NEXT: .p2align 2
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; CHECK-NEXT: @ %bb.1:
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; CHECK-NEXT: .LCPI3_0:
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; CHECK-NEXT: .long 1028 @ 0x404
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entry:
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%pp = getelementptr inbounds [252 x i32], [252 x i32]* %p, i32 0, i32 0
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%asm1 = call { i32, i32, i32, i32, i32, i32, i32, i32 } asm "", "={r0},={r1},={r2},={r3},={r4},={r5},={r6},={r7},0,1,2,3,4,5,6,7"(i32* %pp, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef)
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%asmresult = extractvalue { i32, i32, i32, i32, i32, i32, i32, i32 } %asm1, 0
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%asmresult2 = extractvalue { i32, i32, i32, i32, i32, i32, i32, i32 } %asm1, 1
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%asmresult3 = extractvalue { i32, i32, i32, i32, i32, i32, i32, i32 } %asm1, 2
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%asmresult4 = extractvalue { i32, i32, i32, i32, i32, i32, i32, i32 } %asm1, 3
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%asmresult5 = extractvalue { i32, i32, i32, i32, i32, i32, i32, i32 } %asm1, 4
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%asmresult6 = extractvalue { i32, i32, i32, i32, i32, i32, i32, i32 } %asm1, 5
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%asmresult7 = extractvalue { i32, i32, i32, i32, i32, i32, i32, i32 } %asm1, 6
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%asmresult8 = extractvalue { i32, i32, i32, i32, i32, i32, i32, i32 } %asm1, 7
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%arrayidx = getelementptr inbounds i32, i32* %pp, i32 251
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store i32 %asmresult6, i32* %arrayidx, align 4
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call void asm sideeffect "", "{r0},{r1},{r2},{r3},{r4},{r5},{r6},{r7}"(i32 %asmresult, i32 %asmresult2, i32 %asmresult3, i32 %asmresult4, i32 %asmresult5, i32 %asmresult6, i32 %asmresult7, i32 %asmresult8)
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ret void
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}
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; We currently overestimate the amount of required stack space by 16 bytes,
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; so this is the largest stack that doesn't require an emergency spill slot.
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define void @arg_no_emergency_spill(i32 %n, i32 %n2, i32 %n3, i32 %n4, [248 x i32]* byval([248 x i32]) %p) {
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; CHECK-LABEL: arg_no_emergency_spill:
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; CHECK: @ %bb.0: @ %entry
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; CHECK-NEXT: .save {r4, r5, r6, r7, lr}
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; CHECK-NEXT: push {r4, r5, r6, r7, lr}
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; CHECK-NEXT: add r0, sp, #20
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; CHECK-NEXT: @APP
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; CHECK-NEXT: @NO_APP
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; CHECK-NEXT: str r5, [sp, #1008]
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; CHECK-NEXT: @APP
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; CHECK-NEXT: @NO_APP
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; CHECK-NEXT: pop {r4, r5, r6, r7, pc}
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entry:
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%pp = getelementptr inbounds [248 x i32], [248 x i32]* %p, i32 0, i32 0
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%asm1 = call { i32, i32, i32, i32, i32, i32, i32, i32 } asm "", "={r0},={r1},={r2},={r3},={r4},={r5},={r6},={r7},0,1,2,3,4,5,6,7"(i32* %pp, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef)
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%asmresult = extractvalue { i32, i32, i32, i32, i32, i32, i32, i32 } %asm1, 0
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%asmresult2 = extractvalue { i32, i32, i32, i32, i32, i32, i32, i32 } %asm1, 1
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%asmresult3 = extractvalue { i32, i32, i32, i32, i32, i32, i32, i32 } %asm1, 2
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%asmresult4 = extractvalue { i32, i32, i32, i32, i32, i32, i32, i32 } %asm1, 3
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%asmresult5 = extractvalue { i32, i32, i32, i32, i32, i32, i32, i32 } %asm1, 4
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%asmresult6 = extractvalue { i32, i32, i32, i32, i32, i32, i32, i32 } %asm1, 5
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%asmresult7 = extractvalue { i32, i32, i32, i32, i32, i32, i32, i32 } %asm1, 6
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%asmresult8 = extractvalue { i32, i32, i32, i32, i32, i32, i32, i32 } %asm1, 7
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%arrayidx = getelementptr inbounds i32, i32* %pp, i32 247
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store i32 %asmresult6, i32* %arrayidx, align 4
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call void asm sideeffect "", "{r0},{r1},{r2},{r3},{r4},{r5},{r6},{r7}"(i32 %asmresult, i32 %asmresult2, i32 %asmresult3, i32 %asmresult4, i32 %asmresult5, i32 %asmresult6, i32 %asmresult7, i32 %asmresult8)
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ret void
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}
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define void @aligned_emergency_spill(i32 %n, i32 %n2, i32 %n3, i32 %n4, [31 x i32]* byval([31 x i32]) %p) {
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; CHECK-LABEL: aligned_emergency_spill:
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|
; CHECK: @ %bb.0: @ %entry
|
||
|
|
; CHECK-NEXT: .save {r4, r5, r6, r7, lr}
|
||
|
|
; CHECK-NEXT: push {r4, r5, r6, r7, lr}
|
||
|
|
; CHECK-NEXT: .setfp r7, sp, #12
|
||
|
|
; CHECK-NEXT: add r7, sp, #12
|
||
|
|
; CHECK-NEXT: .pad #44
|
||
|
|
; CHECK-NEXT: sub sp, #44
|
||
|
|
; CHECK-NEXT: mov r4, sp
|
||
|
|
; CHECK-NEXT: lsrs r4, r4, #4
|
||
|
|
; CHECK-NEXT: lsls r4, r4, #4
|
||
|
|
; CHECK-NEXT: mov sp, r4
|
||
|
|
; CHECK-NEXT: add r0, sp, #16
|
||
|
|
; CHECK-NEXT: adds r1, r7, #7
|
||
|
|
; CHECK-NEXT: adds r1, #1
|
||
|
|
; CHECK-NEXT: @APP
|
||
|
|
; CHECK-NEXT: @NO_APP
|
||
|
|
; CHECK-NEXT: str r0, [sp]
|
||
|
|
; CHECK-NEXT: ldr r0, .LCPI5_0
|
||
|
|
; CHECK-NEXT: str r5, [r0, r7]
|
||
|
|
; CHECK-NEXT: ldr r0, [sp]
|
||
|
|
; CHECK-NEXT: @APP
|
||
|
|
; CHECK-NEXT: @NO_APP
|
||
|
|
; CHECK-NEXT: subs r4, r7, #7
|
||
|
|
; CHECK-NEXT: subs r4, #5
|
||
|
|
; CHECK-NEXT: mov sp, r4
|
||
|
|
; CHECK-NEXT: pop {r4, r5, r6, r7, pc}
|
||
|
|
; CHECK-NEXT: .p2align 2
|
||
|
|
; CHECK-NEXT: @ %bb.1:
|
||
|
|
; CHECK-NEXT: .LCPI5_0:
|
||
|
|
; CHECK-NEXT: .long 128 @ 0x80
|
||
|
|
entry:
|
||
|
|
%y = alloca [4 x i32], align 16
|
||
|
|
%pp = getelementptr inbounds [31 x i32], [31 x i32]* %p, i32 0, i32 0
|
||
|
|
%asm1 = call { i32, i32, i32, i32, i32, i32, i32 } asm "", "={r0},={r1},={r2},={r3},={r4},={r5},={r6},0,1,2,3,4,5,6"([4 x i32]* %y, i32* %pp, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef) #3
|
||
|
|
%asmresult = extractvalue { i32, i32, i32, i32, i32, i32, i32 } %asm1, 0
|
||
|
|
%asmresult2 = extractvalue { i32, i32, i32, i32, i32, i32, i32 } %asm1, 1
|
||
|
|
%asmresult3 = extractvalue { i32, i32, i32, i32, i32, i32, i32 } %asm1, 2
|
||
|
|
%asmresult4 = extractvalue { i32, i32, i32, i32, i32, i32, i32 } %asm1, 3
|
||
|
|
%asmresult5 = extractvalue { i32, i32, i32, i32, i32, i32, i32 } %asm1, 4
|
||
|
|
%asmresult6 = extractvalue { i32, i32, i32, i32, i32, i32, i32 } %asm1, 5
|
||
|
|
%asmresult7 = extractvalue { i32, i32, i32, i32, i32, i32, i32 } %asm1, 6
|
||
|
|
%arrayidx = getelementptr inbounds i32, i32* %pp, i32 30
|
||
|
|
store i32 %asmresult6, i32* %arrayidx, align 4
|
||
|
|
call void asm sideeffect "", "{r0},{r1},{r2},{r3},{r4},{r5},{r6}"(i32 %asmresult, i32 %asmresult2, i32 %asmresult3, i32 %asmresult4, i32 %asmresult5, i32 %asmresult6, i32 %asmresult7)
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
; This function should have no emergency spill slot, so its stack should be
|
||
|
|
; smaller than @aligned_emergency_spill.
|
||
|
|
define void @aligned_no_emergency_spill(i32 %n, i32 %n2, i32 %n3, i32 %n4, [30 x i32]* byval([30 x i32]) %p) {
|
||
|
|
; CHECK-LABEL: aligned_no_emergency_spill:
|
||
|
|
; CHECK: @ %bb.0: @ %entry
|
||
|
|
; CHECK-NEXT: .save {r4, r5, r6, r7, lr}
|
||
|
|
; CHECK-NEXT: push {r4, r5, r6, r7, lr}
|
||
|
|
; CHECK-NEXT: .setfp r7, sp, #12
|
||
|
|
; CHECK-NEXT: add r7, sp, #12
|
||
|
|
; CHECK-NEXT: .pad #28
|
||
|
|
; CHECK-NEXT: sub sp, #28
|
||
|
|
; CHECK-NEXT: mov r4, sp
|
||
|
|
; CHECK-NEXT: lsrs r4, r4, #4
|
||
|
|
; CHECK-NEXT: lsls r4, r4, #4
|
||
|
|
; CHECK-NEXT: mov sp, r4
|
||
|
|
; CHECK-NEXT: mov r0, sp
|
||
|
|
; CHECK-NEXT: adds r1, r7, #7
|
||
|
|
; CHECK-NEXT: adds r1, #1
|
||
|
|
; CHECK-NEXT: @APP
|
||
|
|
; CHECK-NEXT: @NO_APP
|
||
|
|
; CHECK-NEXT: str r5, [r7, #124]
|
||
|
|
; CHECK-NEXT: @APP
|
||
|
|
; CHECK-NEXT: @NO_APP
|
||
|
|
; CHECK-NEXT: subs r4, r7, #7
|
||
|
|
; CHECK-NEXT: subs r4, #5
|
||
|
|
; CHECK-NEXT: mov sp, r4
|
||
|
|
; CHECK-NEXT: pop {r4, r5, r6, r7, pc}
|
||
|
|
entry:
|
||
|
|
%y = alloca [4 x i32], align 16
|
||
|
|
%pp = getelementptr inbounds [30 x i32], [30 x i32]* %p, i32 0, i32 0
|
||
|
|
%asm1 = call { i32, i32, i32, i32, i32, i32, i32 } asm "", "={r0},={r1},={r2},={r3},={r4},={r5},={r6},0,1,2,3,4,5,6"([4 x i32]* %y, i32* %pp, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef) #3
|
||
|
|
%asmresult = extractvalue { i32, i32, i32, i32, i32, i32, i32 } %asm1, 0
|
||
|
|
%asmresult2 = extractvalue { i32, i32, i32, i32, i32, i32, i32 } %asm1, 1
|
||
|
|
%asmresult3 = extractvalue { i32, i32, i32, i32, i32, i32, i32 } %asm1, 2
|
||
|
|
%asmresult4 = extractvalue { i32, i32, i32, i32, i32, i32, i32 } %asm1, 3
|
||
|
|
%asmresult5 = extractvalue { i32, i32, i32, i32, i32, i32, i32 } %asm1, 4
|
||
|
|
%asmresult6 = extractvalue { i32, i32, i32, i32, i32, i32, i32 } %asm1, 5
|
||
|
|
%asmresult7 = extractvalue { i32, i32, i32, i32, i32, i32, i32 } %asm1, 6
|
||
|
|
%arrayidx = getelementptr inbounds i32, i32* %pp, i32 29
|
||
|
|
store i32 %asmresult6, i32* %arrayidx, align 4
|
||
|
|
call void asm sideeffect "", "{r0},{r1},{r2},{r3},{r4},{r5},{r6}"(i32 %asmresult, i32 %asmresult2, i32 %asmresult3, i32 %asmresult4, i32 %asmresult5, i32 %asmresult6, i32 %asmresult7)
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
; This function shouldn't fail to compile. (It's UB, so it doesn't really
|
||
|
|
; matter what it compiles to, exactly, but we need to check at some point
|
||
|
|
; so we don't generate code that requires an emergency spill slot we never
|
||
|
|
; allocated. If the store gets eliminated, this testcase probably needs
|
||
|
|
; to be rewritten.)
|
||
|
|
define void @aligned_out_of_range_access(i32 %n, i32 %n2, i32 %n3, i32 %n4, [30 x i32]* byval([30 x i32]) %p) {
|
||
|
|
; CHECK-LABEL: aligned_out_of_range_access:
|
||
|
|
; CHECK: @ %bb.0: @ %entry
|
||
|
|
; CHECK-NEXT: .save {r4, r5, r6, r7, lr}
|
||
|
|
; CHECK-NEXT: push {r4, r5, r6, r7, lr}
|
||
|
|
; CHECK-NEXT: .setfp r7, sp, #12
|
||
|
|
; CHECK-NEXT: add r7, sp, #12
|
||
|
|
; CHECK-NEXT: .pad #44
|
||
|
|
; CHECK-NEXT: sub sp, #44
|
||
|
|
; CHECK-NEXT: mov r4, sp
|
||
|
|
; CHECK-NEXT: lsrs r4, r4, #4
|
||
|
|
; CHECK-NEXT: lsls r4, r4, #4
|
||
|
|
; CHECK-NEXT: mov sp, r4
|
||
|
|
; CHECK-NEXT: add r0, sp, #16
|
||
|
|
; CHECK-NEXT: adds r1, r7, #7
|
||
|
|
; CHECK-NEXT: adds r1, #1
|
||
|
|
; CHECK-NEXT: str r1, [sp, #12] @ 4-byte Spill
|
||
|
|
; CHECK-NEXT: @APP
|
||
|
|
; CHECK-NEXT: @NO_APP
|
||
|
|
; CHECK-NEXT: str r0, [sp, #8] @ 4-byte Spill
|
||
|
|
; CHECK-NEXT: ldr r0, [sp, #12] @ 4-byte Reload
|
||
|
|
; CHECK-NEXT: str r5, [r0, #120]
|
||
|
|
; CHECK-NEXT: ldr r0, [sp, #8] @ 4-byte Reload
|
||
|
|
; CHECK-NEXT: @APP
|
||
|
|
; CHECK-NEXT: @NO_APP
|
||
|
|
; CHECK-NEXT: subs r4, r7, #7
|
||
|
|
; CHECK-NEXT: subs r4, #5
|
||
|
|
; CHECK-NEXT: mov sp, r4
|
||
|
|
; CHECK-NEXT: pop {r4, r5, r6, r7, pc}
|
||
|
|
entry:
|
||
|
|
%y = alloca [4 x i32], align 16
|
||
|
|
%pp = getelementptr inbounds [30 x i32], [30 x i32]* %p, i32 0, i32 0
|
||
|
|
%asm1 = call { i32, i32, i32, i32, i32, i32, i32 } asm "", "={r0},={r1},={r2},={r3},={r4},={r5},={r6},0,1,2,3,4,5,6"([4 x i32]* %y, i32* %pp, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef) #3
|
||
|
|
%asmresult = extractvalue { i32, i32, i32, i32, i32, i32, i32 } %asm1, 0
|
||
|
|
%asmresult2 = extractvalue { i32, i32, i32, i32, i32, i32, i32 } %asm1, 1
|
||
|
|
%asmresult3 = extractvalue { i32, i32, i32, i32, i32, i32, i32 } %asm1, 2
|
||
|
|
%asmresult4 = extractvalue { i32, i32, i32, i32, i32, i32, i32 } %asm1, 3
|
||
|
|
%asmresult5 = extractvalue { i32, i32, i32, i32, i32, i32, i32 } %asm1, 4
|
||
|
|
%asmresult6 = extractvalue { i32, i32, i32, i32, i32, i32, i32 } %asm1, 5
|
||
|
|
%asmresult7 = extractvalue { i32, i32, i32, i32, i32, i32, i32 } %asm1, 6
|
||
|
|
%arrayidx = getelementptr inbounds i32, i32* %pp, i32 30
|
||
|
|
store i32 %asmresult6, i32* %arrayidx, align 4
|
||
|
|
call void asm sideeffect "", "{r0},{r1},{r2},{r3},{r4},{r5},{r6}"(i32 %asmresult, i32 %asmresult2, i32 %asmresult3, i32 %asmresult4, i32 %asmresult5, i32 %asmresult6, i32 %asmresult7)
|
||
|
|
ret void
|
||
|
|
}
|