diff options
| -rw-r--r-- | test/Transforms/InstCombine/icmp.ll | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/test/Transforms/InstCombine/icmp.ll b/test/Transforms/InstCombine/icmp.ll index 64e88c9..c5dba3f 100644 --- a/test/Transforms/InstCombine/icmp.ll +++ b/test/Transforms/InstCombine/icmp.ll @@ -1,10 +1,13 @@ -; RUN: opt < %s -instcombine -S | not grep icmp +; RUN: opt < %s -instcombine -S | FileCheck %s define i32 @test1(i32 %X) { entry: icmp slt i32 %X, 0 ; <i1>:0 [#uses=1] zext i1 %0 to i32 ; <i32>:1 [#uses=1] ret i32 %1 +; CHECK: @test1 +; CHECK: lshr i32 %X, 31 +; CHECK-NEXT: ret i32 } define i32 @test2(i32 %X) { @@ -12,6 +15,10 @@ entry: icmp ult i32 %X, -2147483648 ; <i1>:0 [#uses=1] zext i1 %0 to i32 ; <i32>:1 [#uses=1] ret i32 %1 +; CHECK: @test2 +; CHECK: lshr i32 %X, 31 +; CHECK-NEXT: xor i32 +; CHECK-NEXT: ret i32 } define i32 @test3(i32 %X) { @@ -19,6 +26,9 @@ entry: icmp slt i32 %X, 0 ; <i1>:0 [#uses=1] sext i1 %0 to i32 ; <i32>:1 [#uses=1] ret i32 %1 +; CHECK: @test3 +; CHECK: ashr i32 %X, 31 +; CHECK-NEXT: ret i32 } define i32 @test4(i32 %X) { @@ -26,6 +36,10 @@ entry: icmp ult i32 %X, -2147483648 ; <i1>:0 [#uses=1] sext i1 %0 to i32 ; <i32>:1 [#uses=1] ret i32 %1 +; CHECK: @test4 +; CHECK: ashr i32 %X, 31 +; CHECK-NEXT: xor i32 +; CHECK-NEXT: ret i32 } ; PR4837 @@ -33,6 +47,8 @@ define <2 x i1> @test5(<2 x i64> %x) { entry: %V = icmp eq <2 x i64> %x, undef ret <2 x i1> %V +; CHECK: @test5 +; CHECK: ret <2 x i1> undef } define i32 @test6(i32 %a, i32 %b) { @@ -41,4 +57,8 @@ define i32 @test6(i32 %a, i32 %b) { %e = sub i32 0, %d %f = and i32 %e, %b ret i32 %f +; CHECK: @test6 +; CHECK-NEXT: ashr i32 %a, 31 +; CHECK-NEXT: %f = and i32 %e, %b +; CHECK-NEXT: ret i32 %f } |