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https://github.com/RPCS3/llvm-mirror.git
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bf8ef9fdc3
This is a repeat of 1880092722 from 2009. We should have less risk of hitting bugs at this point because we auto-generate positive CHECK lines only, but this makes things consistent. Copying the original commit msg: "Change tests from "opt %s" to "opt < %s" so that opt doesn't see the input filename so that opt doesn't print the input filename in the output so that grep lines in the tests don't unintentionally match strings in the input filename."
164 lines
3.7 KiB
LLVM
164 lines
3.7 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -instcombine -S | FileCheck %s
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declare i8 @gen8()
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declare void @use8(i8)
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define i1 @t0(i8 %x) {
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; CHECK-LABEL: @t0(
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; CHECK-NEXT: [[CMP:%.*]] = icmp slt i8 [[X:%.*]], 0
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%neg_x = sub nsw i8 0, %x
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%cmp = icmp sgt i8 %neg_x, %x
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ret i1 %cmp
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}
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define i1 @t0_commutative() {
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; CHECK-LABEL: @t0_commutative(
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; CHECK-NEXT: [[X:%.*]] = call i8 @gen8()
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; CHECK-NEXT: [[CMP:%.*]] = icmp slt i8 [[X]], 0
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%x = call i8 @gen8()
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%neg_x = sub nsw i8 0, %x
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%cmp = icmp slt i8 %x, %neg_x
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ret i1 %cmp
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}
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define i1 @t0_extrause(i8 %x) {
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; CHECK-LABEL: @t0_extrause(
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; CHECK-NEXT: [[NEG_X:%.*]] = sub nsw i8 0, [[X:%.*]]
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; CHECK-NEXT: call void @use8(i8 [[NEG_X]])
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; CHECK-NEXT: [[CMP:%.*]] = icmp slt i8 [[X]], 0
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%neg_x = sub nsw i8 0, %x
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call void @use8(i8 %neg_x)
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%cmp = icmp sgt i8 %neg_x, %x
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ret i1 %cmp
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}
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define i1 @t1(i8 %x) {
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; CHECK-LABEL: @t1(
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; CHECK-NEXT: [[CMP:%.*]] = icmp slt i8 [[X:%.*]], 1
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%neg_x = sub nsw i8 0, %x
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%cmp = icmp sge i8 %neg_x, %x
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ret i1 %cmp
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}
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define i1 @t2(i8 %x) {
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; CHECK-LABEL: @t2(
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; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i8 [[X:%.*]], 0
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%neg_x = sub nsw i8 0, %x
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%cmp = icmp slt i8 %neg_x, %x
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ret i1 %cmp
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}
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define i1 @t3(i8 %x) {
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; CHECK-LABEL: @t3(
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; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i8 [[X:%.*]], -1
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%neg_x = sub nsw i8 0, %x
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%cmp = icmp sle i8 %neg_x, %x
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ret i1 %cmp
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}
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define i1 @t4(i8 %x) {
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; CHECK-LABEL: @t4(
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; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i8 [[X:%.*]], 0
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%neg_x = sub nsw i8 0, %x
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%cmp = icmp ugt i8 %neg_x, %x
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ret i1 %cmp
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}
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define i1 @t5(i8 %x) {
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; CHECK-LABEL: @t5(
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; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i8 [[X:%.*]], -1
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%neg_x = sub nsw i8 0, %x
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%cmp = icmp uge i8 %neg_x, %x
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ret i1 %cmp
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}
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define i1 @t6(i8 %x) {
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; CHECK-LABEL: @t6(
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; CHECK-NEXT: [[CMP:%.*]] = icmp slt i8 [[X:%.*]], 0
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%neg_x = sub nsw i8 0, %x
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%cmp = icmp ult i8 %neg_x, %x
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ret i1 %cmp
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}
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define i1 @t7(i8 %x) {
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; CHECK-LABEL: @t7(
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; CHECK-NEXT: [[CMP:%.*]] = icmp slt i8 [[X:%.*]], 1
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%neg_x = sub nsw i8 0, %x
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%cmp = icmp ule i8 %neg_x, %x
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ret i1 %cmp
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}
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define i1 @t8(i8 %x) {
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; CHECK-LABEL: @t8(
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; CHECK-NEXT: [[CMP:%.*]] = icmp eq i8 [[X:%.*]], 0
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%neg_x = sub nsw i8 0, %x
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%cmp = icmp eq i8 %neg_x, %x
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ret i1 %cmp
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}
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define i1 @t9(i8 %x) {
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; CHECK-LABEL: @t9(
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; CHECK-NEXT: [[CMP:%.*]] = icmp ne i8 [[X:%.*]], 0
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%neg_x = sub nsw i8 0, %x
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%cmp = icmp ne i8 %neg_x, %x
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ret i1 %cmp
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}
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define i1 @n10(i8 %x) {
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; CHECK-LABEL: @n10(
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; CHECK-NEXT: [[NEG_X:%.*]] = sub i8 0, [[X:%.*]]
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; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i8 [[NEG_X]], [[X]]
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%neg_x = sub i8 0, %x ; not nsw
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%cmp = icmp sgt i8 %neg_x, %x
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ret i1 %cmp
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}
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define i1 @n11(i8 %x) {
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; CHECK-LABEL: @n11(
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; CHECK-NEXT: [[NEG_X:%.*]] = sub nsw i8 1, [[X:%.*]]
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; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i8 [[NEG_X]], [[X]]
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%neg_x = sub nsw i8 1, %x ; not negation
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%cmp = icmp sgt i8 %neg_x, %x
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ret i1 %cmp
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}
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define i1 @n12(i8 %x1, i8 %x2) {
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; CHECK-LABEL: @n12(
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; CHECK-NEXT: [[NEG_X:%.*]] = sub nsw i8 0, [[X1:%.*]]
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; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i8 [[NEG_X]], [[X2:%.*]]
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%neg_x = sub nsw i8 0, %x1 ; not %x2
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%cmp = icmp sgt i8 %neg_x, %x2 ; not %x1
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ret i1 %cmp
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}
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