Use movups to lower memcpy and memset even if it's not fast (like corei7).

[oota-llvm.git] / test / CodeGen / X86 / memcpy-2.ll

diff --git a/test/CodeGen/X86/memcpy-2.ll b/test/CodeGen/X86/memcpy-2.ll
index 2dc939e666fff92ced19b2dec93fa77e2c76804f..9078e4ba533f92e8b223b52b06b6aabcc00385f8 100644 (file)
--- a/test/CodeGen/X86/memcpy-2.ll
+++ b/test/CodeGen/X86/memcpy-2.ll
@@ -1,15 +1,127 @@
-; RUN: llc < %s -march=x86 -mattr=-sse -mtriple=i686-apple-darwin8.8.0 | grep mov | count 7
-; RUN: llc < %s -march=x86 -mattr=+sse -mtriple=i686-apple-darwin8.8.0 | grep mov | count 5
+; RUN: llc < %s -mattr=+sse2      -mtriple=i686-apple-darwin -mcpu=core2 | FileCheck %s -check-prefix=SSE2
+; RUN: llc < %s -mattr=-sse       -mtriple=i686-apple-darwin -mcpu=core2 | FileCheck %s -check-prefix=NOSSE
+; RUN: llc < %s                 -mtriple=x86_64-apple-darwin -mcpu=core2 | FileCheck %s -check-prefix=X86-64
 
-       %struct.ParmT = type { [25 x i8], i8, i8* }
-@.str12 = internal constant [25 x i8] c"image\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00"             ; <[25 x i8]*> [#uses=1]
+@.str = internal constant [25 x i8] c"image\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00"
+@.str2 = internal constant [30 x i8] c"xxxxxxxxxxxxxxxxxxxxxxxxxxxxx\00", align 4
 
-declare void @llvm.memcpy.i32(i8*, i8*, i32, i32) nounwind 
+define void @t1(i32 %argc, i8** %argv) nounwind  {
+entry:
+; SSE2: t1:
+; SSE2: movaps _.str, %xmm0
+; SSE2: movaps %xmm0
+; SSE2: movb $0
+; SSE2: movl $0
+; SSE2: movl $0
+
+; NOSSE: t1:
+; NOSSE: movb $0
+; NOSSE: movl $0
+; NOSSE: movl $0
+; NOSSE: movl $0
+; NOSSE: movl $0
+; NOSSE: movl $101
+; NOSSE: movl $1734438249
+
+; X86-64: t1:
+; X86-64: movaps _.str(%rip), %xmm0
+; X86-64: movaps %xmm0
+; X86-64: movb $0
+; X86-64: movq $0
+  %tmp1 = alloca [25 x i8]
+  %tmp2 = bitcast [25 x i8]* %tmp1 to i8*
+  call void @llvm.memcpy.i32( i8* %tmp2, i8* getelementptr ([25 x i8]* @.str, i32 0, i32 0), i32 25, i32 1 ) nounwind 
+  unreachable
+}
+
+;rdar://7774704
+%struct.s0 = type { [2 x double] }
+
+define void @t2(%struct.s0* nocapture %a, %struct.s0* nocapture %b) nounwind ssp {
+entry:
+; SSE2: t2:
+; SSE2: movaps (%eax), %xmm0
+; SSE2: movaps %xmm0, (%eax)
+
+; NOSSE: t2:
+; NOSSE: movl
+; NOSSE: movl
+; NOSSE: movl
+; NOSSE: movl
+; NOSSE: movl
+; NOSSE: movl
+; NOSSE: movl
+; NOSSE: movl
+; NOSSE: movl
+; NOSSE: movl
+
+; X86-64: t2:
+; X86-64: movaps (%rsi), %xmm0
+; X86-64: movaps %xmm0, (%rdi)
+  %tmp2 = bitcast %struct.s0* %a to i8*           ; <i8*> [#uses=1]
+  %tmp3 = bitcast %struct.s0* %b to i8*           ; <i8*> [#uses=1]
+  tail call void @llvm.memcpy.i32(i8* %tmp2, i8* %tmp3, i32 16, i32 16)
+  ret void
+}
 
-define void @t(i32 %argc, i8** %argv) nounwind  {
+define void @t3(%struct.s0* nocapture %a, %struct.s0* nocapture %b) nounwind ssp {
 entry:
-       %parms.i = alloca [13 x %struct.ParmT]          ; <[13 x %struct.ParmT]*> [#uses=1]
-       %parms1.i = getelementptr [13 x %struct.ParmT]* %parms.i, i32 0, i32 0, i32 0, i32 0            ; <i8*> [#uses=1]
-       call void @llvm.memcpy.i32( i8* %parms1.i, i8* getelementptr ([25 x i8]* @.str12, i32 0, i32 0), i32 25, i32 1 ) nounwind 
-       unreachable
+; SSE2: t3:
+; SSE2: movups (%eax), %xmm0
+; SSE2: movups %xmm0, (%eax)
+
+; NOSSE: t3:
+; NOSSE: movl
+; NOSSE: movl
+; NOSSE: movl
+; NOSSE: movl
+; NOSSE: movl
+; NOSSE: movl
+; NOSSE: movl
+; NOSSE: movl
+; NOSSE: movl
+; NOSSE: movl
+
+; X86-64: t3:
+; X86-64: movups (%rsi), %xmm0
+; X86-64: movups %xmm0, (%rdi)
+  %tmp2 = bitcast %struct.s0* %a to i8*           ; <i8*> [#uses=1]
+  %tmp3 = bitcast %struct.s0* %b to i8*           ; <i8*> [#uses=1]
+  tail call void @llvm.memcpy.i32(i8* %tmp2, i8* %tmp3, i32 16, i32 8)
+  ret void
 }
+
+define void @t4() nounwind {
+entry:
+; SSE2: t4:
+; SSE2: movups _.str2, %xmm0
+; SSE2: movaps %xmm0, (%esp)
+; SSE2: movw $120, 28(%esp)
+; SSE2: movl $2021161080
+; SSE2: movl $2021161080
+; SSE2: movl $2021161080
+
+; NOSSE: t4:
+; NOSSE: movw $120
+; NOSSE: movl $2021161080
+; NOSSE: movl $2021161080
+; NOSSE: movl $2021161080
+; NOSSE: movl $2021161080
+; NOSSE: movl $2021161080
+; NOSSE: movl $2021161080
+; NOSSE: movl $2021161080
+
+; X86-64: t4:
+; X86-64: movabsq $8680820740569200760, %rax
+; X86-64: movq %rax
+; X86-64: movups _.str2(%rip), %xmm0
+; X86-64: movaps %xmm0, -40(%rsp)
+; X86-64: movw $120
+; X86-64: movl $2021161080
+  %tmp1 = alloca [30 x i8]
+  %tmp2 = bitcast [30 x i8]* %tmp1 to i8*
+  call void @llvm.memcpy.i32(i8* %tmp2, i8* getelementptr inbounds ([30 x i8]* @.str2, i32 0, i32 0), i32 30, i32 1)
+  unreachable
+}
+
+declare void @llvm.memcpy.i32(i8* nocapture, i8* nocapture, i32, i32) nounwind