diff options
Diffstat (limited to 'test/CodeGen/X86/and-or-fold.ll')
-rw-r--r-- | test/CodeGen/X86/and-or-fold.ll | 28 |
1 files changed, 20 insertions, 8 deletions
diff --git a/test/CodeGen/X86/and-or-fold.ll b/test/CodeGen/X86/and-or-fold.ll index 7733b8a5ba..836b5f1551 100644 --- a/test/CodeGen/X86/and-or-fold.ll +++ b/test/CodeGen/X86/and-or-fold.ll @@ -1,14 +1,26 @@ -; RUN: llc < %s -march=x86 | grep and | count 1 +; RUN: llc < %s -mtriple=i686-apple-darwin | FileCheck -check-prefix=DARWIN %s +; RUN: opt < %s -O2 | llc -mtriple=x86_64-apple-darwin | FileCheck -check-prefix=DARWIN-OPT %s ; The dag combiner should fold together (x&127)|(y&16711680) -> (x|y)&c1 ; in this case. -define i32 @test6(i32 %x, i16 %y) { - %tmp1 = zext i16 %y to i32 ; <i32> [#uses=1] - %tmp2 = and i32 %tmp1, 127 ; <i32> [#uses=1] - %tmp4 = shl i32 %x, 16 ; <i32> [#uses=1] - %tmp5 = and i32 %tmp4, 16711680 ; <i32> [#uses=1] - %tmp6 = or i32 %tmp2, %tmp5 ; <i32> [#uses=1] - ret i32 %tmp6 +define i32 @test1(i32 %x, i16 %y) { + %tmp1 = zext i16 %y to i32 + %tmp2 = and i32 %tmp1, 127 + %tmp4 = shl i32 %x, 16 + %tmp5 = and i32 %tmp4, 16711680 + %tmp6 = or i32 %tmp2, %tmp5 + ret i32 %tmp6 +; DARWIN: andl $16711807, %eax } +; <rdar://problem/7529774> The optimizer shouldn't fold this into (and (or, C), D) +; if (C & D) == 0 +define i64 @test2(i64 %x) nounwind readnone ssp { +entry: + %tmp1 = and i64 %x, 123127 + %tmp2 = or i64 %tmp1, 3 + ret i64 %tmp2 +; DARWIN-OPT: andq $123124 +; DARWIN-OPT-NEXT: leaq 3 +} |