; RUN: llc < %s -mcpu=generic -march=x86 -post-RA-scheduler=false | FileCheck %s ; rdar://7226797 ; LLVM should omit the testl and use the flags result from the orl. ; CHECK-LABEL: or: define void @or(float* %A, i32 %IA, i32 %N) nounwind { entry: %0 = ptrtoint float* %A to i32 ; <i32> [#uses=1] %1 = and i32 %0, 3 ; <i32> [#uses=1] %2 = xor i32 %IA, 1 ; <i32> [#uses=1] ; CHECK: orl %e ; CHECK-NEXT: je %3 = or i32 %2, %1 ; <i32> [#uses=1] %4 = icmp eq i32 %3, 0 ; <i1> [#uses=1] br i1 %4, label %return, label %bb bb: ; preds = %entry store float 0.000000e+00, float* %A, align 4 ret void return: ; preds = %entry ret void } ; CHECK-LABEL: xor: define void @xor(float* %A, i32 %IA, i32 %N) nounwind { entry: %0 = ptrtoint float* %A to i32 ; <i32> [#uses=1] %1 = and i32 %0, 3 ; <i32> [#uses=1] ; CHECK: xorl $1, %e ; CHECK-NEXT: je %2 = xor i32 %IA, 1 ; <i32> [#uses=1] %3 = xor i32 %2, %1 ; <i32> [#uses=1] %4 = icmp eq i32 %3, 0 ; <i1> [#uses=1] br i1 %4, label %return, label %bb bb: ; preds = %entry store float 0.000000e+00, float* %A, align 4 ret void return: ; preds = %entry ret void } ; CHECK-LABEL: and: define void @and(float* %A, i32 %IA, i32 %N, i8* %p) nounwind { entry: store i8 0, i8* %p %0 = ptrtoint float* %A to i32 ; <i32> [#uses=1] %1 = and i32 %0, 3 ; <i32> [#uses=1] %2 = xor i32 %IA, 1 ; <i32> [#uses=1] ; CHECK: andl $3, % ; CHECK-NEXT: movb % ; CHECK-NEXT: je %3 = and i32 %2, %1 ; <i32> [#uses=1] %t = trunc i32 %3 to i8 store i8 %t, i8* %p %4 = icmp eq i32 %3, 0 ; <i1> [#uses=1] br i1 %4, label %return, label %bb bb: ; preds = %entry store float 0.000000e+00, float* null, align 4 ret void return: ; preds = %entry ret void } ; Just like @and, but without the trunc+store. This should use a testb ; instead of an andl. ; CHECK-LABEL: test: define void @test(float* %A, i32 %IA, i32 %N, i8* %p) nounwind { entry: store i8 0, i8* %p %0 = ptrtoint float* %A to i32 ; <i32> [#uses=1] %1 = and i32 %0, 3 ; <i32> [#uses=1] %2 = xor i32 %IA, 1 ; <i32> [#uses=1] ; CHECK: testb $3, % ; CHECK-NEXT: je %3 = and i32 %2, %1 ; <i32> [#uses=1] %4 = icmp eq i32 %3, 0 ; <i1> [#uses=1] br i1 %4, label %return, label %bb bb: ; preds = %entry store float 0.000000e+00, float* null, align 4 ret void return: ; preds = %entry ret void }