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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."
149 lines
4.1 KiB
LLVM
149 lines
4.1 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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define i32 @t0(i64 %x) {
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; CHECK-LABEL: @t0(
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; CHECK-NEXT: [[T0_NEG:%.*]] = ashr i64 [[X:%.*]], 63
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; CHECK-NEXT: [[T1_NEG:%.*]] = trunc i64 [[T0_NEG]] to i32
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; CHECK-NEXT: ret i32 [[T1_NEG]]
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;
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%t0 = lshr i64 %x, 63
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%t1 = trunc i64 %t0 to i32
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%r = sub i32 0, %t1
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ret i32 %r
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}
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define i32 @t1_exact(i64 %x) {
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; CHECK-LABEL: @t1_exact(
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; CHECK-NEXT: [[T0_NEG:%.*]] = ashr exact i64 [[X:%.*]], 63
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; CHECK-NEXT: [[T1_NEG:%.*]] = trunc i64 [[T0_NEG]] to i32
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; CHECK-NEXT: ret i32 [[T1_NEG]]
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;
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%t0 = lshr exact i64 %x, 63
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%t1 = trunc i64 %t0 to i32
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%r = sub i32 0, %t1
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ret i32 %r
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}
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define i32 @t2(i64 %x) {
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; CHECK-LABEL: @t2(
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; CHECK-NEXT: [[T0_NEG:%.*]] = lshr i64 [[X:%.*]], 63
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; CHECK-NEXT: [[T1_NEG:%.*]] = trunc i64 [[T0_NEG]] to i32
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; CHECK-NEXT: ret i32 [[T1_NEG]]
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;
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%t0 = ashr i64 %x, 63
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%t1 = trunc i64 %t0 to i32
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%r = sub i32 0, %t1
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ret i32 %r
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}
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define i32 @t3_exact(i64 %x) {
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; CHECK-LABEL: @t3_exact(
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; CHECK-NEXT: [[T0_NEG:%.*]] = lshr exact i64 [[X:%.*]], 63
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; CHECK-NEXT: [[T1_NEG:%.*]] = trunc i64 [[T0_NEG]] to i32
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; CHECK-NEXT: ret i32 [[T1_NEG]]
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;
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%t0 = ashr exact i64 %x, 63
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%t1 = trunc i64 %t0 to i32
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%r = sub i32 0, %t1
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ret i32 %r
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}
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define <2 x i32> @t4(<2 x i64> %x) {
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; CHECK-LABEL: @t4(
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; CHECK-NEXT: [[T0_NEG:%.*]] = ashr <2 x i64> [[X:%.*]], <i64 63, i64 63>
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; CHECK-NEXT: [[T1_NEG:%.*]] = trunc <2 x i64> [[T0_NEG]] to <2 x i32>
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; CHECK-NEXT: ret <2 x i32> [[T1_NEG]]
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;
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%t0 = lshr <2 x i64> %x, <i64 63, i64 63>
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%t1 = trunc <2 x i64> %t0 to <2 x i32>
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%r = sub <2 x i32> zeroinitializer, %t1
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ret <2 x i32> %r
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}
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define <2 x i32> @t5(<2 x i64> %x) {
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; CHECK-LABEL: @t5(
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; CHECK-NEXT: [[T0:%.*]] = lshr <2 x i64> [[X:%.*]], <i64 63, i64 undef>
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; CHECK-NEXT: [[T1:%.*]] = trunc <2 x i64> [[T0]] to <2 x i32>
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; CHECK-NEXT: [[R:%.*]] = sub <2 x i32> <i32 0, i32 undef>, [[T1]]
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; CHECK-NEXT: ret <2 x i32> [[R]]
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;
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%t0 = lshr <2 x i64> %x, <i64 63, i64 undef>
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%t1 = trunc <2 x i64> %t0 to <2 x i32>
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%r = sub <2 x i32> <i32 0, i32 undef>, %t1
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ret <2 x i32> %r
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}
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declare void @use64(i64)
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declare void @use32(i32)
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define i32 @t6(i64 %x) {
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; CHECK-LABEL: @t6(
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; CHECK-NEXT: [[T0_NEG:%.*]] = ashr i64 [[X:%.*]], 63
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; CHECK-NEXT: [[T0:%.*]] = lshr i64 [[X]], 63
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; CHECK-NEXT: call void @use64(i64 [[T0]])
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; CHECK-NEXT: [[T1_NEG:%.*]] = trunc i64 [[T0_NEG]] to i32
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; CHECK-NEXT: ret i32 [[T1_NEG]]
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;
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%t0 = lshr i64 %x, 63
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call void @use64(i64 %t0)
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%t1 = trunc i64 %t0 to i32
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%r = sub i32 0, %t1
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ret i32 %r
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}
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define i32 @n7(i64 %x) {
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; CHECK-LABEL: @n7(
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; CHECK-NEXT: [[T0:%.*]] = lshr i64 [[X:%.*]], 63
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; CHECK-NEXT: [[T1:%.*]] = trunc i64 [[T0]] to i32
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; CHECK-NEXT: call void @use32(i32 [[T1]])
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; CHECK-NEXT: [[R:%.*]] = sub nsw i32 0, [[T1]]
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; CHECK-NEXT: ret i32 [[R]]
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;
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%t0 = lshr i64 %x, 63
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%t1 = trunc i64 %t0 to i32
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call void @use32(i32 %t1)
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%r = sub i32 0, %t1
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ret i32 %r
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}
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define i32 @n8(i64 %x) {
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; CHECK-LABEL: @n8(
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; CHECK-NEXT: [[T0:%.*]] = lshr i64 [[X:%.*]], 63
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; CHECK-NEXT: call void @use64(i64 [[T0]])
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; CHECK-NEXT: [[T1:%.*]] = trunc i64 [[T0]] to i32
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; CHECK-NEXT: call void @use32(i32 [[T1]])
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; CHECK-NEXT: [[R:%.*]] = sub nsw i32 0, [[T1]]
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; CHECK-NEXT: ret i32 [[R]]
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;
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%t0 = lshr i64 %x, 63
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call void @use64(i64 %t0)
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%t1 = trunc i64 %t0 to i32
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call void @use32(i32 %t1)
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%r = sub i32 0, %t1
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ret i32 %r
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}
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define i32 @n9(i64 %x) {
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; CHECK-LABEL: @n9(
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; CHECK-NEXT: [[T0:%.*]] = lshr i64 [[X:%.*]], 62
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; CHECK-NEXT: [[T1:%.*]] = trunc i64 [[T0]] to i32
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; CHECK-NEXT: [[R:%.*]] = sub nsw i32 0, [[T1]]
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; CHECK-NEXT: ret i32 [[R]]
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;
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%t0 = lshr i64 %x, 62
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%t1 = trunc i64 %t0 to i32
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%r = sub i32 0, %t1
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ret i32 %r
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}
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define i32 @n10(i64 %x) {
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; CHECK-LABEL: @n10(
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; CHECK-NEXT: [[T0_NEG:%.*]] = ashr i64 [[X:%.*]], 63
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; CHECK-NEXT: [[T1_NEG:%.*]] = trunc i64 [[T0_NEG]] to i32
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; CHECK-NEXT: [[R:%.*]] = add i32 [[T1_NEG]], 1
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; CHECK-NEXT: ret i32 [[R]]
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;
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%t0 = lshr i64 %x, 63
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%t1 = trunc i64 %t0 to i32
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%r = sub i32 1, %t1
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ret i32 %r
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}
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