llvm/test/CodeGen/X86/widen_load-1.ll
Mon P Wang eb38ebf15c Improved widening loads by adding support for wider loads if
the alignment allows.  Fixed a bug where we didn't use a
vector load/store for PR5626.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94338 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-24 00:05:03 +00:00

46 lines
2.1 KiB
LLVM

; RUN: llc %s -o - -march=x86-64 -mtriple=x86_64-unknown-linux-gnu -disable-mmx | FileCheck %s
; PR4891
; This load should be before the call, not after.
; CHECK: movaps compl+128(%rip), %xmm0
; CHECK: movaps %xmm0, (%rsp)
; CHECK: callq killcommon
@compl = linkonce global [20 x i64] zeroinitializer, align 64 ; <[20 x i64]*> [#uses=1]
declare void @killcommon(i32* noalias)
define void @reset(<2 x float>* noalias %garbage1) {
"file complex.c, line 27, bb1":
%changed = alloca i32, align 4 ; <i32*> [#uses=3]
br label %"file complex.c, line 27, bb13"
"file complex.c, line 27, bb13": ; preds = %"file complex.c, line 27, bb1"
store i32 0, i32* %changed, align 4
%r2 = getelementptr float* bitcast ([20 x i64]* @compl to float*), i64 32 ; <float*> [#uses=1]
%r3 = bitcast float* %r2 to <2 x float>* ; <<2 x float>*> [#uses=1]
%r4 = load <2 x float>* %r3, align 4 ; <<2 x float>> [#uses=1]
call void @killcommon(i32* %changed)
br label %"file complex.c, line 34, bb4"
"file complex.c, line 34, bb4": ; preds = %"file complex.c, line 27, bb13"
%r5 = load i32* %changed, align 4 ; <i32> [#uses=1]
%r6 = icmp eq i32 %r5, 0 ; <i1> [#uses=1]
%r7 = zext i1 %r6 to i32 ; <i32> [#uses=1]
%r8 = icmp ne i32 %r7, 0 ; <i1> [#uses=1]
br i1 %r8, label %"file complex.c, line 34, bb7", label %"file complex.c, line 27, bb5"
"file complex.c, line 27, bb5": ; preds = %"file complex.c, line 34, bb4"
br label %"file complex.c, line 35, bb6"
"file complex.c, line 35, bb6": ; preds = %"file complex.c, line 27, bb5"
%r11 = ptrtoint <2 x float>* %garbage1 to i64 ; <i64> [#uses=1]
%r12 = inttoptr i64 %r11 to <2 x float>* ; <<2 x float>*> [#uses=1]
store <2 x float> %r4, <2 x float>* %r12, align 4
br label %"file complex.c, line 34, bb7"
"file complex.c, line 34, bb7": ; preds = %"file complex.c, line 35, bb6", %"file complex.c, line 34, bb4"
ret void
}