298 lines
7.7 KiB
LLVM
298 lines
7.7 KiB
LLVM
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
||
|
|
; RUN: opt < %s -reassociate -gvn -instcombine -S | FileCheck %s
|
||
|
|
; RUN: opt < %s -passes='reassociate,gvn,instcombine' -S | FileCheck %s
|
||
|
|
|
||
|
|
define i32 @test1(i32 %arg) {
|
||
|
|
; CHECK-LABEL: @test1(
|
||
|
|
; CHECK-NEXT: [[ARG_NEG:%.*]] = sub i32 0, [[ARG:%.*]]
|
||
|
|
; CHECK-NEXT: ret i32 [[ARG_NEG]]
|
||
|
|
;
|
||
|
|
%tmp1 = sub i32 -12, %arg
|
||
|
|
%tmp2 = add i32 %tmp1, 12
|
||
|
|
ret i32 %tmp2
|
||
|
|
}
|
||
|
|
|
||
|
|
define i32 @test2(i32 %reg109, i32 %reg1111) {
|
||
|
|
; CHECK-LABEL: @test2(
|
||
|
|
; CHECK-NEXT: [[REG117:%.*]] = add i32 [[REG1111:%.*]], [[REG109:%.*]]
|
||
|
|
; CHECK-NEXT: ret i32 [[REG117]]
|
||
|
|
;
|
||
|
|
%reg115 = add i32 %reg109, -30
|
||
|
|
%reg116 = add i32 %reg115, %reg1111
|
||
|
|
%reg117 = add i32 %reg116, 30
|
||
|
|
ret i32 %reg117
|
||
|
|
}
|
||
|
|
|
||
|
|
@e = external global i32
|
||
|
|
@a = external global i32
|
||
|
|
@b = external global i32
|
||
|
|
@c = external global i32
|
||
|
|
@f = external global i32
|
||
|
|
|
||
|
|
define void @test3() {
|
||
|
|
; CHECK-LABEL: @test3(
|
||
|
|
; CHECK-NEXT: [[A:%.*]] = load i32, i32* @a, align 4
|
||
|
|
; CHECK-NEXT: [[B:%.*]] = load i32, i32* @b, align 4
|
||
|
|
; CHECK-NEXT: [[C:%.*]] = load i32, i32* @c, align 4
|
||
|
|
; CHECK-NEXT: [[T1:%.*]] = add i32 [[B]], [[A]]
|
||
|
|
; CHECK-NEXT: [[T2:%.*]] = add i32 [[T1]], [[C]]
|
||
|
|
; CHECK-NEXT: store i32 [[T2]], i32* @e, align 4
|
||
|
|
; CHECK-NEXT: store i32 [[T2]], i32* @f, align 4
|
||
|
|
; CHECK-NEXT: ret void
|
||
|
|
;
|
||
|
|
%A = load i32, i32* @a
|
||
|
|
%B = load i32, i32* @b
|
||
|
|
%C = load i32, i32* @c
|
||
|
|
%t1 = add i32 %A, %B
|
||
|
|
%t2 = add i32 %t1, %C
|
||
|
|
%t3 = add i32 %C, %A
|
||
|
|
%t4 = add i32 %t3, %B
|
||
|
|
; e = (a+b)+c;
|
||
|
|
store i32 %t2, i32* @e
|
||
|
|
; f = (a+c)+b
|
||
|
|
store i32 %t4, i32* @f
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define void @test4() {
|
||
|
|
; CHECK-LABEL: @test4(
|
||
|
|
; CHECK-NEXT: [[A:%.*]] = load i32, i32* @a, align 4
|
||
|
|
; CHECK-NEXT: [[B:%.*]] = load i32, i32* @b, align 4
|
||
|
|
; CHECK-NEXT: [[C:%.*]] = load i32, i32* @c, align 4
|
||
|
|
; CHECK-NEXT: [[T1:%.*]] = add i32 [[B]], [[A]]
|
||
|
|
; CHECK-NEXT: [[T2:%.*]] = add i32 [[T1]], [[C]]
|
||
|
|
; CHECK-NEXT: store i32 [[T2]], i32* @e, align 4
|
||
|
|
; CHECK-NEXT: store i32 [[T2]], i32* @f, align 4
|
||
|
|
; CHECK-NEXT: ret void
|
||
|
|
;
|
||
|
|
%A = load i32, i32* @a
|
||
|
|
%B = load i32, i32* @b
|
||
|
|
%C = load i32, i32* @c
|
||
|
|
%t1 = add i32 %A, %B
|
||
|
|
%t2 = add i32 %t1, %C
|
||
|
|
%t3 = add i32 %C, %A
|
||
|
|
%t4 = add i32 %t3, %B
|
||
|
|
; e = c+(a+b)
|
||
|
|
store i32 %t2, i32* @e
|
||
|
|
; f = (c+a)+b
|
||
|
|
store i32 %t4, i32* @f
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define void @test5() {
|
||
|
|
; CHECK-LABEL: @test5(
|
||
|
|
; CHECK-NEXT: [[A:%.*]] = load i32, i32* @a, align 4
|
||
|
|
; CHECK-NEXT: [[B:%.*]] = load i32, i32* @b, align 4
|
||
|
|
; CHECK-NEXT: [[C:%.*]] = load i32, i32* @c, align 4
|
||
|
|
; CHECK-NEXT: [[T1:%.*]] = add i32 [[B]], [[A]]
|
||
|
|
; CHECK-NEXT: [[T2:%.*]] = add i32 [[T1]], [[C]]
|
||
|
|
; CHECK-NEXT: store i32 [[T2]], i32* @e, align 4
|
||
|
|
; CHECK-NEXT: store i32 [[T2]], i32* @f, align 4
|
||
|
|
; CHECK-NEXT: ret void
|
||
|
|
;
|
||
|
|
%A = load i32, i32* @a
|
||
|
|
%B = load i32, i32* @b
|
||
|
|
%C = load i32, i32* @c
|
||
|
|
%t1 = add i32 %B, %A
|
||
|
|
%t2 = add i32 %t1, %C
|
||
|
|
%t3 = add i32 %C, %A
|
||
|
|
%t4 = add i32 %t3, %B
|
||
|
|
; e = c+(b+a)
|
||
|
|
store i32 %t2, i32* @e
|
||
|
|
; f = (c+a)+b
|
||
|
|
store i32 %t4, i32* @f
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define i32 @test6() {
|
||
|
|
; CHECK-LABEL: @test6(
|
||
|
|
; CHECK-NEXT: ret i32 0
|
||
|
|
;
|
||
|
|
%tmp.0 = load i32, i32* @a
|
||
|
|
%tmp.1 = load i32, i32* @b
|
||
|
|
; (a+b)
|
||
|
|
%tmp.2 = add i32 %tmp.0, %tmp.1
|
||
|
|
%tmp.4 = load i32, i32* @c
|
||
|
|
; (a+b)+c
|
||
|
|
%tmp.5 = add i32 %tmp.2, %tmp.4
|
||
|
|
; (a+c)
|
||
|
|
%tmp.8 = add i32 %tmp.0, %tmp.4
|
||
|
|
; (a+c)+b
|
||
|
|
%tmp.11 = add i32 %tmp.8, %tmp.1
|
||
|
|
; X ^ X = 0
|
||
|
|
%RV = xor i32 %tmp.5, %tmp.11
|
||
|
|
ret i32 %RV
|
||
|
|
}
|
||
|
|
|
||
|
|
; This should be one add and two multiplies.
|
||
|
|
; A*A*B + A*C*A
|
||
|
|
|
||
|
|
define i32 @test7(i32 %A, i32 %B, i32 %C) {
|
||
|
|
; CHECK-LABEL: @test7(
|
||
|
|
; CHECK-NEXT: [[REASS_ADD1:%.*]] = add i32 [[C:%.*]], [[B:%.*]]
|
||
|
|
; CHECK-NEXT: [[REASS_MUL2:%.*]] = mul i32 [[A:%.*]], [[A]]
|
||
|
|
; CHECK-NEXT: [[REASS_MUL:%.*]] = mul i32 [[REASS_MUL2]], [[REASS_ADD1]]
|
||
|
|
; CHECK-NEXT: ret i32 [[REASS_MUL]]
|
||
|
|
;
|
||
|
|
%aa = mul i32 %A, %A
|
||
|
|
%aab = mul i32 %aa, %B
|
||
|
|
%ac = mul i32 %A, %C
|
||
|
|
%aac = mul i32 %ac, %A
|
||
|
|
%r = add i32 %aab, %aac
|
||
|
|
ret i32 %r
|
||
|
|
}
|
||
|
|
|
||
|
|
define i32 @test8(i32 %X, i32 %Y, i32 %Z) {
|
||
|
|
; CHECK-LABEL: @test8(
|
||
|
|
; CHECK-NEXT: [[A:%.*]] = mul i32 [[Y:%.*]], [[X:%.*]]
|
||
|
|
; CHECK-NEXT: [[C:%.*]] = sub i32 [[Z:%.*]], [[A]]
|
||
|
|
; CHECK-NEXT: ret i32 [[C]]
|
||
|
|
;
|
||
|
|
%A = sub i32 0, %X
|
||
|
|
%B = mul i32 %A, %Y
|
||
|
|
; (-X)*Y + Z -> Z-X*Y
|
||
|
|
%C = add i32 %B, %Z
|
||
|
|
ret i32 %C
|
||
|
|
}
|
||
|
|
|
||
|
|
; PR5458
|
||
|
|
|
||
|
|
define i32 @test9(i32 %X) {
|
||
|
|
; CHECK-LABEL: @test9(
|
||
|
|
; CHECK-NEXT: [[FACTOR:%.*]] = mul i32 [[X:%.*]], 94
|
||
|
|
; CHECK-NEXT: ret i32 [[FACTOR]]
|
||
|
|
;
|
||
|
|
%Y = mul i32 %X, 47
|
||
|
|
%Z = add i32 %Y, %Y
|
||
|
|
ret i32 %Z
|
||
|
|
}
|
||
|
|
|
||
|
|
define i32 @test10(i32 %X) {
|
||
|
|
; CHECK-LABEL: @test10(
|
||
|
|
; CHECK-NEXT: [[FACTOR:%.*]] = mul i32 [[X:%.*]], 3
|
||
|
|
; CHECK-NEXT: ret i32 [[FACTOR]]
|
||
|
|
;
|
||
|
|
%Y = add i32 %X ,%X
|
||
|
|
%Z = add i32 %Y, %X
|
||
|
|
ret i32 %Z
|
||
|
|
}
|
||
|
|
|
||
|
|
define i32 @test11(i32 %W) {
|
||
|
|
; CHECK-LABEL: @test11(
|
||
|
|
; CHECK-NEXT: [[FACTOR:%.*]] = mul i32 [[W:%.*]], 381
|
||
|
|
; CHECK-NEXT: ret i32 [[FACTOR]]
|
||
|
|
;
|
||
|
|
%X = mul i32 %W, 127
|
||
|
|
%Y = add i32 %X ,%X
|
||
|
|
%Z = add i32 %Y, %X
|
||
|
|
ret i32 %Z
|
||
|
|
}
|
||
|
|
|
||
|
|
declare void @mumble(i32)
|
||
|
|
|
||
|
|
define i32 @test12(i32 %X) {
|
||
|
|
; CHECK-LABEL: @test12(
|
||
|
|
; CHECK-NEXT: [[X_NEG:%.*]] = sub i32 0, [[X:%.*]]
|
||
|
|
; CHECK-NEXT: call void @mumble(i32 [[X_NEG]])
|
||
|
|
; CHECK-NEXT: [[FACTOR:%.*]] = mul i32 [[X]], -3
|
||
|
|
; CHECK-NEXT: [[Z:%.*]] = add i32 [[FACTOR]], 6
|
||
|
|
; CHECK-NEXT: ret i32 [[Z]]
|
||
|
|
;
|
||
|
|
%X.neg = sub nsw nuw i32 0, %X
|
||
|
|
call void @mumble(i32 %X.neg)
|
||
|
|
%A = sub i32 1, %X
|
||
|
|
%B = sub i32 2, %X
|
||
|
|
%C = sub i32 3, %X
|
||
|
|
%Y = add i32 %A ,%B
|
||
|
|
%Z = add i32 %Y, %C
|
||
|
|
ret i32 %Z
|
||
|
|
}
|
||
|
|
|
||
|
|
define i32 @test13(i32 %X1, i32 %X2, i32 %X3) {
|
||
|
|
; CHECK-LABEL: @test13(
|
||
|
|
; CHECK-NEXT: [[REASS_ADD:%.*]] = sub i32 [[X3:%.*]], [[X2:%.*]]
|
||
|
|
; CHECK-NEXT: [[REASS_MUL:%.*]] = mul i32 [[REASS_ADD]], [[X1:%.*]]
|
||
|
|
; CHECK-NEXT: ret i32 [[REASS_MUL]]
|
||
|
|
;
|
||
|
|
%A = sub i32 0, %X1
|
||
|
|
%B = mul i32 %A, %X2 ; -X1*X2
|
||
|
|
%C = mul i32 %X1, %X3 ; X1*X3
|
||
|
|
%D = add i32 %B, %C ; -X1*X2 + X1*X3 -> X1*(X3-X2)
|
||
|
|
ret i32 %D
|
||
|
|
}
|
||
|
|
|
||
|
|
; PR5359
|
||
|
|
|
||
|
|
define i32 @test14(i32 %X1, i32 %X2) {
|
||
|
|
; CHECK-LABEL: @test14(
|
||
|
|
; CHECK-NEXT: [[REASS_ADD:%.*]] = sub i32 [[X1:%.*]], [[X2:%.*]]
|
||
|
|
; CHECK-NEXT: [[REASS_MUL:%.*]] = mul i32 [[REASS_ADD]], 47
|
||
|
|
; CHECK-NEXT: ret i32 [[REASS_MUL]]
|
||
|
|
;
|
||
|
|
%B = mul i32 %X1, 47 ; X1*47
|
||
|
|
%C = mul i32 %X2, -47 ; X2*-47
|
||
|
|
%D = add i32 %B, %C ; X1*47 + X2*-47 -> 47*(X1-X2)
|
||
|
|
ret i32 %D
|
||
|
|
}
|
||
|
|
|
||
|
|
; Do not reassociate expressions of type i1
|
||
|
|
|
||
|
|
define i32 @test15(i32 %X1, i32 %X2, i32 %X3) {
|
||
|
|
; CHECK-LABEL: @test15(
|
||
|
|
; CHECK-NEXT: [[A:%.*]] = icmp ne i32 [[X1:%.*]], 0
|
||
|
|
; CHECK-NEXT: [[B:%.*]] = icmp slt i32 [[X2:%.*]], [[X3:%.*]]
|
||
|
|
; CHECK-NEXT: [[C:%.*]] = and i1 [[A]], [[B]]
|
||
|
|
; CHECK-NEXT: [[D:%.*]] = select i1 [[C]], i32 [[X1]], i32 0
|
||
|
|
; CHECK-NEXT: ret i32 [[D]]
|
||
|
|
;
|
||
|
|
%A = icmp ne i32 %X1, 0
|
||
|
|
%B = icmp slt i32 %X2, %X3
|
||
|
|
%C = and i1 %A, %B
|
||
|
|
%D = select i1 %C, i32 %X1, i32 0
|
||
|
|
ret i32 %D
|
||
|
|
}
|
||
|
|
|
||
|
|
; PR30256 - previously this asserted.
|
||
|
|
|
||
|
|
define i64 @test16(i1 %cmp, i64 %a, i64 %b) {
|
||
|
|
; CHECK-LABEL: @test16(
|
||
|
|
; CHECK-NEXT: entry:
|
||
|
|
; CHECK-NEXT: br i1 [[CMP:%.*]], label [[IF_THEN:%.*]], label [[IF_END:%.*]]
|
||
|
|
; CHECK: if.then:
|
||
|
|
; CHECK-NEXT: [[FACTOR:%.*]] = mul i64 [[A:%.*]], -4
|
||
|
|
; CHECK-NEXT: [[ADD2:%.*]] = add i64 [[FACTOR]], [[B:%.*]]
|
||
|
|
; CHECK-NEXT: ret i64 [[ADD2]]
|
||
|
|
; CHECK: if.end:
|
||
|
|
; CHECK-NEXT: ret i64 0
|
||
|
|
;
|
||
|
|
entry:
|
||
|
|
%shl = shl i64 %a, 1
|
||
|
|
%shl.neg = sub i64 0, %shl
|
||
|
|
br i1 %cmp, label %if.then, label %if.end
|
||
|
|
|
||
|
|
if.then:
|
||
|
|
%add1 = add i64 %shl.neg, %shl.neg
|
||
|
|
%add2 = add i64 %add1, %b
|
||
|
|
ret i64 %add2
|
||
|
|
|
||
|
|
if.end:
|
||
|
|
ret i64 0
|
||
|
|
}
|
||
|
|
|
||
|
|
define i32 @test17(i32 %X1, i32 %X2, i32 %X3, i32 %X4) {
|
||
|
|
; CHECK-LABEL: @test17(
|
||
|
|
; CHECK-NEXT: [[A:%.*]] = mul i32 [[X4:%.*]], [[X3:%.*]]
|
||
|
|
; CHECK-NEXT: [[C:%.*]] = mul i32 [[A]], [[X1:%.*]]
|
||
|
|
; CHECK-NEXT: [[D:%.*]] = mul i32 [[A]], [[X2:%.*]]
|
||
|
|
; CHECK-NEXT: [[E:%.*]] = xor i32 [[C]], [[D]]
|
||
|
|
; CHECK-NEXT: ret i32 [[E]]
|
||
|
|
;
|
||
|
|
%A = mul i32 %X3, %X1
|
||
|
|
%B = mul i32 %X3, %X2
|
||
|
|
%C = mul i32 %A, %X4
|
||
|
|
%D = mul i32 %B, %X4
|
||
|
|
%E = xor i32 %C, %D
|
||
|
|
ret i32 %E
|
||
|
|
}
|
||
|
|
|