llvm/test/Transforms/InstCombine/printf-2.ll
Stephen Lin 39f4e8d9cc 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186268 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-14 01:42:54 +00:00

42 lines
1.3 KiB
LLVM

; Test that the printf 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"
@hello_world = constant [13 x i8] c"hello world\0A\00"
@h = constant [2 x i8] c"h\00"
@percent_s = constant [4 x i8] c"%s\0A\00"
declare void @printf(i8*, ...)
; Check simplification of printf with void return type.
define void @test_simplify1() {
; CHECK-LABEL: @test_simplify1(
%fmt = getelementptr [2 x i8]* @h, i32 0, i32 0
call void (i8*, ...)* @printf(i8* %fmt)
; CHECK-NEXT: call i32 @putchar(i32 104)
ret void
; CHECK-NEXT: ret void
}
define void @test_simplify2() {
; CHECK-LABEL: @test_simplify2(
%fmt = getelementptr [13 x i8]* @hello_world, i32 0, i32 0
call void (i8*, ...)* @printf(i8* %fmt)
; CHECK-NEXT: call i32 @puts(i8* getelementptr inbounds ([12 x i8]* @str, i32 0, i32 0))
ret void
; CHECK-NEXT: ret void
}
define void @test_simplify6() {
; CHECK-LABEL: @test_simplify6(
%fmt = getelementptr [4 x i8]* @percent_s, i32 0, i32 0
%str = getelementptr [13 x i8]* @hello_world, i32 0, i32 0
call void (i8*, ...)* @printf(i8* %fmt, i8* %str)
; CHECK-NEXT: call i32 @puts(i8* getelementptr inbounds ([13 x i8]* @hello_world, i32 0, i32 0))
ret void
; CHECK-NEXT: ret void
}