llvm-mirror/test/Transforms/InstCombine/memcpy-1.ll

; Test that the memcpy library call simplifier works correctly.
;
; RUN: opt < %s -instcombine -S | FileCheck %s

target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"

declare i8* @memcpy(i8*, i8*, i32)

; Check memcpy(mem1, mem2, size) -> llvm.memcpy(mem1, mem2, size, 1).

define i8* @test_simplify1(i8* %mem1, i8* %mem2, i32 %size) {
; CHECK-LABEL: @test_simplify1(
  %ret = call i8* @memcpy(i8* %mem1, i8* %mem2, i32 %size)
; CHECK: call void @llvm.memcpy
  ret i8* %ret
; CHECK: ret i8* %mem1
}
instcombine: Migrate memcpy optimizations This patch migrates the memcpy optimizations from the simplify-libcalls pass into the instcombine library call simplifier. llvm-svn: 167686 2012-11-11 06:54:34 +01:00			`; Test that the memcpy library call simplifier works correctly.`
			`;`
			`; RUN: opt < %s -instcombine -S \| FileCheck %s`

			`target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"`

			`declare i8* @memcpy(i8, i8, i32)`

			`; Check memcpy(mem1, mem2, size) -> llvm.memcpy(mem1, mem2, size, 1).`

			`define i8* @test_simplify1(i8* %mem1, i8* %mem2, i32 %size) {`
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. This update was done with the following bash script: find test/Transforms -name ".ll" \| \ while read NAME; do echo "$NAME" if ! grep -q "^; RUN: llc" $NAME; then TEMP=`mktemp -t temp` cp $NAME $TEMP sed -n "s/^define [^@]@\([A-Za-z0-9_]\)(.$/\1/p" < $NAME \| \ while read FUNC; do sed -i '' "s/;\(.\)\([A-Za-z0-9_]\):\( \)@$FUNC\([( ]\)\$/;\1\2-LABEL:\3@$FUNC(/g" $TEMP done mv $TEMP $NAME fi done llvm-svn: 186268 2013-07-14 03:42:54 +02:00			`; CHECK-LABEL: @test_simplify1(`
instcombine: Migrate memcpy optimizations This patch migrates the memcpy optimizations from the simplify-libcalls pass into the instcombine library call simplifier. llvm-svn: 167686 2012-11-11 06:54:34 +01:00			`%ret = call i8* @memcpy(i8* %mem1, i8* %mem2, i32 %size)`
			`; CHECK: call void @llvm.memcpy`
			`ret i8* %ret`
			`; CHECK: ret i8* %mem1`
			`}`