CodeGen peephole: fold redundant phys reg copies

[oota-llvm.git] / test / CodeGen / X86 / xor.ll

diff --git a/test/CodeGen/X86/xor.ll b/test/CodeGen/X86/xor.ll
index 829be41e5127956e9a9a5605ba4a88694c0ac9a4..f78fe27578651a8981f11f241102b0acb569ca34 100644 (file)
--- a/test/CodeGen/X86/xor.ll
+++ b/test/CodeGen/X86/xor.ll
@@ -1,4 +1,4 @@
-; RUN: llc < %s -march=x86            -mattr=+sse2 | FileCheck %s -check-prefix=X32
+; RUN: llc < %s -mtriple=i686-unknown -mattr=+sse2 | FileCheck %s -check-prefix=X32
 ; RUN: llc < %s -mtriple=x86_64-linux -mattr=+sse2 | FileCheck %s -check-prefix=X64
 ; RUN: llc < %s -mtriple=x86_64-win32 -mattr=+sse2 | FileCheck %s -check-prefix=X64
 
@@ -193,3 +193,22 @@ define i32 @test11(i32 %b) {
 ; X32: movl    $-2, %[[REG:.*]]
 ; X32: roll    %{{.*}}, %[[REG]]
 }
+
+%struct.ref_s = type { %union.v, i16, i16 }
+%union.v = type { i64 }
+
+define %struct.ref_s* @test12(%struct.ref_s* %op, i64 %osbot, i64 %intval) {
+  %neg = shl i64 %intval, 32
+  %sext = xor i64 %neg, -4294967296
+  %idx.ext = ashr exact i64 %sext, 32
+  %add.ptr = getelementptr inbounds %struct.ref_s, %struct.ref_s* %op, i64 %idx.ext
+  ret %struct.ref_s* %add.ptr
+; X64-LABEL: test12:
+; X64: shlq    $32, %[[REG:.*]]
+; X64-NOT: not
+; X64: sarq    $28, %[[REG]]
+; X32-LABEL: test12:
+; X32: leal
+; X32-NOT: not
+; X32: shll    $2, %eax
+}