llvm/test/CodeGen/SystemZ/int-mul-07.ll
Stephen Lin 8b2b8a1835 Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.
This update was done with the following bash script:

  find test/CodeGen -name "*.ll" | \
  while read NAME; do
    echo "$NAME"
    if ! grep -q "^; *RUN: *llc.*debug" $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
      sed -i '' "s/;\(.*\)-LABEL-LABEL:/;\1-LABEL:/" $TEMP
      sed -i '' "s/;\(.*\)-NEXT-LABEL:/;\1-NEXT:/" $TEMP
      sed -i '' "s/;\(.*\)-NOT-LABEL:/;\1-NOT:/" $TEMP
      sed -i '' "s/;\(.*\)-DAG-LABEL:/;\1-DAG:/" $TEMP
      mv $TEMP $NAME
    fi
  done


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186280 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-14 06:24:09 +00:00

65 lines
1.6 KiB
LLVM

; Test high-part i32->i64 multiplications.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
; We don't provide *MUL_LOHI or MULH* for the patterns in this file,
; but they should at least still work.
; Check zero-extended multiplication in which only the high part is used.
define i32 @f1(i32 %a, i32 %b) {
; CHECK-LABEL: f1:
; CHECK: msgr
; CHECK: br %r14
%ax = zext i32 %a to i64
%bx = zext i32 %b to i64
%mulx = mul i64 %ax, %bx
%highx = lshr i64 %mulx, 32
%high = trunc i64 %highx to i32
ret i32 %high
}
; Check sign-extended multiplication in which only the high part is used.
define i32 @f2(i32 %a, i32 %b) {
; CHECK-LABEL: f2:
; CHECK: msgfr
; CHECK: br %r14
%ax = sext i32 %a to i64
%bx = sext i32 %b to i64
%mulx = mul i64 %ax, %bx
%highx = lshr i64 %mulx, 32
%high = trunc i64 %highx to i32
ret i32 %high
}
; Check zero-extended multiplication in which the result is split into
; high and low halves.
define i32 @f3(i32 %a, i32 %b) {
; CHECK-LABEL: f3:
; CHECK: msgr
; CHECK: br %r14
%ax = zext i32 %a to i64
%bx = zext i32 %b to i64
%mulx = mul i64 %ax, %bx
%highx = lshr i64 %mulx, 32
%high = trunc i64 %highx to i32
%low = trunc i64 %mulx to i32
%or = or i32 %high, %low
ret i32 %or
}
; Check sign-extended multiplication in which the result is split into
; high and low halves.
define i32 @f4(i32 %a, i32 %b) {
; CHECK-LABEL: f4:
; CHECK: msgfr
; CHECK: br %r14
%ax = sext i32 %a to i64
%bx = sext i32 %b to i64
%mulx = mul i64 %ax, %bx
%highx = lshr i64 %mulx, 32
%high = trunc i64 %highx to i32
%low = trunc i64 %mulx to i32
%or = or i32 %high, %low
ret i32 %or
}