llvm-6502/test/CodeGen/ARM/2012-10-04-AAPCS-byval-align8.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

71 lines
2.2 KiB
LLVM

; RUN: llc < %s -mtriple=armv7-none-linux-gnueabi | FileCheck %s
; Test that we correctly use registers and align elements when using va_arg
%struct_t = type { double, double, double }
@static_val = constant %struct_t { double 1.0, double 2.0, double 3.0 }
declare void @llvm.va_start(i8*) nounwind
declare void @llvm.va_end(i8*) nounwind
; CHECK-LABEL: test_byval_8_bytes_alignment:
define void @test_byval_8_bytes_alignment(i32 %i, ...) {
entry:
; CHECK: stm r0, {r1, r2, r3}
%g = alloca i8*
%g1 = bitcast i8** %g to i8*
call void @llvm.va_start(i8* %g1)
; CHECK: add [[REG:(r[0-9]+)|(lr)]], {{(r[0-9]+)|(lr)}}, #7
; CHECK: bfc [[REG]], #0, #3
%0 = va_arg i8** %g, double
call void @llvm.va_end(i8* %g1)
ret void
}
; CHECK-LABEL: main:
; CHECK: movw [[BASE:r[0-9]+]], :lower16:static_val
; CHECK: movt [[BASE]], :upper16:static_val
; ldm is not formed when the coalescer failed to coalesce everything.
; CHECK: ldr r2, {{\[}}[[BASE]]{{\]}}
; CHECK: ldr [[TMP:r[0-9]+]], {{\[}}[[BASE]], #4{{\]}}
; CHECK: movw r0, #555
; Currently the coalescer misses this opportunity.
; CHECK: mov r3, [[TMP]]
define i32 @main() {
entry:
call void (i32, ...)* @test_byval_8_bytes_alignment(i32 555, %struct_t* byval @static_val)
ret i32 0
}
declare void @f(double);
; CHECK-LABEL: test_byval_8_bytes_alignment_fixed_arg:
; CHECK-NOT: str r1
; CHECK: str r3, [sp, #12]
; CHECK: str r2, [sp, #8]
; CHECK-NOT: str r1
define void @test_byval_8_bytes_alignment_fixed_arg(i32 %n1, %struct_t* byval %val) nounwind {
entry:
%a = getelementptr inbounds %struct_t* %val, i32 0, i32 0
%0 = load double* %a
call void (double)* @f(double %0)
ret void
}
; CHECK-LABEL: main_fixed_arg:
; CHECK: movw [[BASE:r[0-9]+]], :lower16:static_val
; CHECK: movt [[BASE]], :upper16:static_val
; ldm is not formed when the coalescer failed to coalesce everything.
; CHECK: ldr r2, {{\[}}[[BASE]]{{\]}}
; CHECK: ldr [[TMP:r[0-9]+]], {{\[}}[[BASE]], #4{{\]}}
; CHECK: movw r0, #555
; Currently the coalescer misses this opportunity.
; CHECK: mov r3, [[TMP]]
define i32 @main_fixed_arg() {
entry:
call void (i32, %struct_t*)* @test_byval_8_bytes_alignment_fixed_arg(i32 555, %struct_t* byval @static_val)
ret i32 0
}