6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-16 11:30:51 +00:00
Code Issues Projects Releases Wiki Activity
198d8baafb
llvm-6502/test/CodeGen/ARM/ssp-data-layout.ll
David Blaikie 198d8baafb [opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction 
One of several parallel first steps to remove the target type of pointers,
replacing them with a single opaque pointer type.

This adds an explicit type parameter to the gep instruction so that when the
first parameter becomes an opaque pointer type, the type to gep through is
still available to the instructions.

* This doesn't modify gep operators, only instructions (operators will be
  handled separately)

* Textual IR changes only. Bitcode (including upgrade) and changing the
  in-memory representation will be in separate changes.

* geps of vectors are transformed as:
    getelementptr <4 x float*> %x, ...
  ->getelementptr float, <4 x float*> %x, ...
  Then, once the opaque pointer type is introduced, this will ultimately look
  like:
    getelementptr float, <4 x ptr> %x
  with the unambiguous interpretation that it is a vector of pointers to float.

* address spaces remain on the pointer, not the type:
    getelementptr float addrspace(1)* %x
  ->getelementptr float, float addrspace(1)* %x
  Then, eventually:
    getelementptr float, ptr addrspace(1) %x

Importantly, the massive amount of test case churn has been automated by
same crappy python code. I had to manually update a few test cases that
wouldn't fit the script's model (r228970,r229196,r229197,r229198). The
python script just massages stdin and writes the result to stdout, I
then wrapped that in a shell script to handle replacing files, then
using the usual find+xargs to migrate all the files.

update.py:
import fileinput
import sys
import re

ibrep = re.compile(r"(^.*?[^%\w]getelementptr inbounds )(((?:<\d* x )?)(.*?)(| addrspace\(\d\)) *\*(|>)(?:$| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$))")
normrep = re.compile(       r"(^.*?[^%\w]getelementptr )(((?:<\d* x )?)(.*?)(| addrspace\(\d\)) *\*(|>)(?:$| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$))")

def conv(match, line):
  if not match:
    return line
  line = match.groups()[0]
  if len(match.groups()[5]) == 0:
    line += match.groups()[2]
  line += match.groups()[3]
  line += ", "
  line += match.groups()[1]
  line += "\n"
  return line

for line in sys.stdin:
  if line.find("getelementptr ") == line.find("getelementptr inbounds"):
    if line.find("getelementptr inbounds") != line.find("getelementptr inbounds ("):
      line = conv(re.match(ibrep, line), line)
  elif line.find("getelementptr ") != line.find("getelementptr ("):
    line = conv(re.match(normrep, line), line)
  sys.stdout.write(line)

apply.sh:
for name in "$@"
do
  python3 `dirname "$0"`/update.py < "$name" > "$name.tmp" && mv "$name.tmp" "$name"
  rm -f "$name.tmp"
done

The actual commands:
From llvm/src:
find test/ -name *.ll | xargs ./apply.sh
From llvm/src/tools/clang:
find test/ -name *.mm -o -name *.m -o -name *.cpp -o -name *.c | xargs -I '{}' ../../apply.sh "{}"
From llvm/src/tools/polly:
find test/ -name *.ll | xargs ./apply.sh

After that, check-all (with llvm, clang, clang-tools-extra, lld,
compiler-rt, and polly all checked out).

The extra 'rm' in the apply.sh script is due to a few files in clang's test
suite using interesting unicode stuff that my python script was throwing
exceptions on. None of those files needed to be migrated, so it seemed
sufficient to ignore those cases.

Reviewers: rafael, dexonsmith, grosser

Differential Revision: http://reviews.llvm.org/D7636

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230786 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 19:29:02 +00:00

529 lines
21 KiB
LLVM
Raw Blame History

; RUN: llc < %s -disable-fp-elim -march=arm -mcpu=cortex-a8 -mtriple arm-linux-gnu -o - | FileCheck %s
; This test is fairly fragile. The goal is to ensure that "large" stack
; objects are allocated closest to the stack protector (i.e., farthest away
; from the Stack Pointer.) In standard SSP mode this means that large (>=
; ssp-buffer-size) arrays and structures containing such arrays are
; closet to the protector. With sspstrong and sspreq this means large
; arrays/structures-with-arrays are closest, followed by small (< ssp-buffer-size)
; arrays/structures-with-arrays, and then addr-taken variables.
;
; Ideally, we only want verify that the objects appear in the correct groups
; and that the groups have the correct relative stack offset. The ordering
; within a group is not relevant to this test. Unfortunately, there is not
; an elegant way to do this, so just match the offset for each object.
%struct.struct_large_char = type { [8 x i8] }
%struct.struct_large_char2 = type { [2 x i8], [8 x i8] }
%struct.struct_small_char = type { [2 x i8] }
%struct.struct_large_nonchar = type { [8 x i32] }
%struct.struct_small_nonchar = type { [2 x i16] }
define void @layout_ssp() ssp {
entry:
; Expected stack layout for ssp is
; 180 large_char . Group 1, nested arrays, arrays >= ssp-buffer-size
; 172 struct_large_char .
; 168 scalar1 | Everything else
; 164 scalar2
; 160 scalar3
; 156 addr-of
; 152 small_nonchar (84+68)
; 112 large_nonchar
; 110 small_char
; 108 struct_small_char
; 72 struct_large_nonchar
; 68 struct_small_nonchar
; CHECK: layout_ssp:
; r[[SP]] is used as an offset into the stack later
; CHECK: add r[[SP:[0-9]+]], sp, #68
; CHECK: bl get_scalar1
; CHECK: str r0, [sp, #168]
; CHECK: bl end_scalar1
; CHECK: bl get_scalar2
; CHECK: str r0, [sp, #164]
; CHECK: bl end_scalar2
; CHECK: bl get_scalar3
; CHECK: str r0, [sp, #160]
; CHECK: bl end_scalar3
; CHECK: bl get_addrof
; CHECK: str r0, [sp, #156]
; CHECK: bl end_addrof
; CHECK: get_small_nonchar
; CHECK: strh r0, [r[[SP]], #84]
; CHECK: bl end_small_nonchar
; CHECK: bl get_large_nonchar
; CHECK: str r0, [sp, #112]
; CHECK: bl end_large_nonchar
; CHECK: bl get_small_char
; CHECK: strb r0, [sp, #110]
; CHECK: bl end_small_char
; CHECK: bl get_large_char
; CHECK: strb r0, [sp, #180]
; CHECK: bl end_large_char
; CHECK: bl get_struct_large_char
; CHECK: strb r0, [sp, #172]
; CHECK: bl end_struct_large_char
; CHECK: bl get_struct_small_char
; CHECK: strb r0, [sp, #108]
; CHECK: bl end_struct_small_char
; CHECK: bl get_struct_large_nonchar
; CHECK:str r0, [sp, #72]
; CHECK: bl end_struct_large_nonchar
; CHECK: bl get_struct_small_nonchar
; CHECK: strh r0, [r[[SP]]]
; CHECK: bl end_struct_small_nonchar
%x = alloca i32, align 4
%y = alloca i32, align 4
%z = alloca i32, align 4
%ptr = alloca i32, align 4
%small2 = alloca [2 x i16], align 2
%large2 = alloca [8 x i32], align 16
%small = alloca [2 x i8], align 1
%large = alloca [8 x i8], align 1
%a = alloca %struct.struct_large_char, align 1
%b = alloca %struct.struct_small_char, align 1
%c = alloca %struct.struct_large_nonchar, align 8
%d = alloca %struct.struct_small_nonchar, align 2
%call = call i32 @get_scalar1()
store i32 %call, i32* %x, align 4
call void @end_scalar1()
%call1 = call i32 @get_scalar2()
store i32 %call1, i32* %y, align 4
call void @end_scalar2()
%call2 = call i32 @get_scalar3()
store i32 %call2, i32* %z, align 4
call void @end_scalar3()
%call3 = call i32 @get_addrof()
store i32 %call3, i32* %ptr, align 4
call void @end_addrof()
%call4 = call signext i16 @get_small_nonchar()
%arrayidx = getelementptr inbounds [2 x i16], [2 x i16]* %small2, i32 0, i64 0
store i16 %call4, i16* %arrayidx, align 2
call void @end_small_nonchar()
%call5 = call i32 @get_large_nonchar()
%arrayidx6 = getelementptr inbounds [8 x i32], [8 x i32]* %large2, i32 0, i64 0
store i32 %call5, i32* %arrayidx6, align 4
call void @end_large_nonchar()
%call7 = call signext i8 @get_small_char()
%arrayidx8 = getelementptr inbounds [2 x i8], [2 x i8]* %small, i32 0, i64 0
store i8 %call7, i8* %arrayidx8, align 1
call void @end_small_char()
%call9 = call signext i8 @get_large_char()
%arrayidx10 = getelementptr inbounds [8 x i8], [8 x i8]* %large, i32 0, i64 0
store i8 %call9, i8* %arrayidx10, align 1
call void @end_large_char()
%call11 = call signext i8 @get_struct_large_char()
%foo = getelementptr inbounds %struct.struct_large_char, %struct.struct_large_char* %a, i32 0, i32 0
%arrayidx12 = getelementptr inbounds [8 x i8], [8 x i8]* %foo, i32 0, i64 0
store i8 %call11, i8* %arrayidx12, align 1
call void @end_struct_large_char()
%call13 = call signext i8 @get_struct_small_char()
%foo14 = getelementptr inbounds %struct.struct_small_char, %struct.struct_small_char* %b, i32 0, i32 0
%arrayidx15 = getelementptr inbounds [2 x i8], [2 x i8]* %foo14, i32 0, i64 0
store i8 %call13, i8* %arrayidx15, align 1
call void @end_struct_small_char()
%call16 = call i32 @get_struct_large_nonchar()
%foo17 = getelementptr inbounds %struct.struct_large_nonchar, %struct.struct_large_nonchar* %c, i32 0, i32 0
%arrayidx18 = getelementptr inbounds [8 x i32], [8 x i32]* %foo17, i32 0, i64 0
store i32 %call16, i32* %arrayidx18, align 4
call void @end_struct_large_nonchar()
%call19 = call signext i16 @get_struct_small_nonchar()
%foo20 = getelementptr inbounds %struct.struct_small_nonchar, %struct.struct_small_nonchar* %d, i32 0, i32 0
%arrayidx21 = getelementptr inbounds [2 x i16], [2 x i16]* %foo20, i32 0, i64 0
store i16 %call19, i16* %arrayidx21, align 2
call void @end_struct_small_nonchar()
%arraydecay = getelementptr inbounds [8 x i8], [8 x i8]* %large, i32 0, i32 0
%arraydecay22 = getelementptr inbounds [2 x i8], [2 x i8]* %small, i32 0, i32 0
%arraydecay23 = getelementptr inbounds [8 x i32], [8 x i32]* %large2, i32 0, i32 0
%arraydecay24 = getelementptr inbounds [2 x i16], [2 x i16]* %small2, i32 0, i32 0
%0 = load i32* %x, align 4
%1 = load i32* %y, align 4
%2 = load i32* %z, align 4
%coerce.dive = getelementptr %struct.struct_large_char, %struct.struct_large_char* %a, i32 0, i32 0
%3 = bitcast [8 x i8]* %coerce.dive to i64*
%4 = load i64* %3, align 1
%coerce.dive25 = getelementptr %struct.struct_small_char, %struct.struct_small_char* %b, i32 0, i32 0
%5 = bitcast [2 x i8]* %coerce.dive25 to i16*
%6 = load i16* %5, align 1
%coerce.dive26 = getelementptr %struct.struct_small_nonchar, %struct.struct_small_nonchar* %d, i32 0, i32 0
%7 = bitcast [2 x i16]* %coerce.dive26 to i32*
%8 = load i32* %7, align 1
call void @takes_all(i64 %4, i16 %6, %struct.struct_large_nonchar* byval align 8 %c, i32 %8, i8* %arraydecay, i8* %arraydecay22, i32* %arraydecay23, i16* %arraydecay24, i32* %ptr, i32 %0, i32 %1, i32 %2)
ret void
}
define void @layout_sspstrong() sspstrong {
entry:
; Expected stack layout for sspstrong is
; 144 large_nonchar . Group 1, nested arrays,
; 136 large_char . arrays >= ssp-buffer-size
; 128 struct_large_char .
; 96 struct_large_nonchar .
; 84+8 small_non_char | Group 2, nested arrays,
; 90 small_char | arrays < ssp-buffer-size
; 88 struct_small_char |
; 84 struct_small_nonchar |
; 80 addrof * Group 3, addr-of local
; 76 scalar1 + Group 4, everything else
; 72 scalar2 +
; 68 scalar3 +
;
; CHECK: layout_sspstrong:
; r[[SP]] is used as an offset into the stack later
; CHECK: add r[[SP:[0-9]+]], sp, #84
; CHECK: bl get_scalar1
; CHECK: str r0, [sp, #76]
; CHECK: bl end_scalar1
; CHECK: bl get_scalar2
; CHECK: str r0, [sp, #72]
; CHECK: bl end_scalar2
; CHECK: bl get_scalar3
; CHECK: str r0, [sp, #68]
; CHECK: bl end_scalar3
; CHECK: bl get_addrof
; CHECK: str r0, [sp, #80]
; CHECK: bl end_addrof
; CHECK: get_small_nonchar
; CHECK: strh r0, [r[[SP]], #8]
; CHECK: bl end_small_nonchar
; CHECK: bl get_large_nonchar
; CHECK: str r0, [sp, #144]
; CHECK: bl end_large_nonchar
; CHECK: bl get_small_char
; CHECK: strb r0, [sp, #90]
; CHECK: bl end_small_char
; CHECK: bl get_large_char
; CHECK: strb r0, [sp, #136]
; CHECK: bl end_large_char
; CHECK: bl get_struct_large_char
; CHECK: strb r0, [sp, #128]
; CHECK: bl end_struct_large_char
; CHECK: bl get_struct_small_char
; CHECK: strb r0, [sp, #88]
; CHECK: bl end_struct_small_char
; CHECK: bl get_struct_large_nonchar
; CHECK: str r0, [sp, #96]
; CHECK: bl end_struct_large_nonchar
; CHECK: bl get_struct_small_nonchar
; CHECK: strh r0, [r[[SP]]]
; CHECK: bl end_struct_small_nonchar
%x = alloca i32, align 4
%y = alloca i32, align 4
%z = alloca i32, align 4
%ptr = alloca i32, align 4
%small2 = alloca [2 x i16], align 2
%large2 = alloca [8 x i32], align 16
%small = alloca [2 x i8], align 1
%large = alloca [8 x i8], align 1
%a = alloca %struct.struct_large_char, align 1
%b = alloca %struct.struct_small_char, align 1
%c = alloca %struct.struct_large_nonchar, align 8
%d = alloca %struct.struct_small_nonchar, align 2
%call = call i32 @get_scalar1()
store i32 %call, i32* %x, align 4
call void @end_scalar1()
%call1 = call i32 @get_scalar2()
store i32 %call1, i32* %y, align 4
call void @end_scalar2()
%call2 = call i32 @get_scalar3()
store i32 %call2, i32* %z, align 4
call void @end_scalar3()
%call3 = call i32 @get_addrof()
store i32 %call3, i32* %ptr, align 4
call void @end_addrof()
%call4 = call signext i16 @get_small_nonchar()
%arrayidx = getelementptr inbounds [2 x i16], [2 x i16]* %small2, i32 0, i64 0
store i16 %call4, i16* %arrayidx, align 2
call void @end_small_nonchar()
%call5 = call i32 @get_large_nonchar()
%arrayidx6 = getelementptr inbounds [8 x i32], [8 x i32]* %large2, i32 0, i64 0
store i32 %call5, i32* %arrayidx6, align 4
call void @end_large_nonchar()
%call7 = call signext i8 @get_small_char()
%arrayidx8 = getelementptr inbounds [2 x i8], [2 x i8]* %small, i32 0, i64 0
store i8 %call7, i8* %arrayidx8, align 1
call void @end_small_char()
%call9 = call signext i8 @get_large_char()
%arrayidx10 = getelementptr inbounds [8 x i8], [8 x i8]* %large, i32 0, i64 0
store i8 %call9, i8* %arrayidx10, align 1
call void @end_large_char()
%call11 = call signext i8 @get_struct_large_char()
%foo = getelementptr inbounds %struct.struct_large_char, %struct.struct_large_char* %a, i32 0, i32 0
%arrayidx12 = getelementptr inbounds [8 x i8], [8 x i8]* %foo, i32 0, i64 0
store i8 %call11, i8* %arrayidx12, align 1
call void @end_struct_large_char()
%call13 = call signext i8 @get_struct_small_char()
%foo14 = getelementptr inbounds %struct.struct_small_char, %struct.struct_small_char* %b, i32 0, i32 0
%arrayidx15 = getelementptr inbounds [2 x i8], [2 x i8]* %foo14, i32 0, i64 0
store i8 %call13, i8* %arrayidx15, align 1
call void @end_struct_small_char()
%call16 = call i32 @get_struct_large_nonchar()
%foo17 = getelementptr inbounds %struct.struct_large_nonchar, %struct.struct_large_nonchar* %c, i32 0, i32 0
%arrayidx18 = getelementptr inbounds [8 x i32], [8 x i32]* %foo17, i32 0, i64 0
store i32 %call16, i32* %arrayidx18, align 4
call void @end_struct_large_nonchar()
%call19 = call signext i16 @get_struct_small_nonchar()
%foo20 = getelementptr inbounds %struct.struct_small_nonchar, %struct.struct_small_nonchar* %d, i32 0, i32 0
%arrayidx21 = getelementptr inbounds [2 x i16], [2 x i16]* %foo20, i32 0, i64 0
store i16 %call19, i16* %arrayidx21, align 2
call void @end_struct_small_nonchar()
%arraydecay = getelementptr inbounds [8 x i8], [8 x i8]* %large, i32 0, i32 0
%arraydecay22 = getelementptr inbounds [2 x i8], [2 x i8]* %small, i32 0, i32 0
%arraydecay23 = getelementptr inbounds [8 x i32], [8 x i32]* %large2, i32 0, i32 0
%arraydecay24 = getelementptr inbounds [2 x i16], [2 x i16]* %small2, i32 0, i32 0
%0 = load i32* %x, align 4
%1 = load i32* %y, align 4
%2 = load i32* %z, align 4
%coerce.dive = getelementptr %struct.struct_large_char, %struct.struct_large_char* %a, i32 0, i32 0
%3 = bitcast [8 x i8]* %coerce.dive to i64*
%4 = load i64* %3, align 1
%coerce.dive25 = getelementptr %struct.struct_small_char, %struct.struct_small_char* %b, i32 0, i32 0
%5 = bitcast [2 x i8]* %coerce.dive25 to i16*
%6 = load i16* %5, align 1
%coerce.dive26 = getelementptr %struct.struct_small_nonchar, %struct.struct_small_nonchar* %d, i32 0, i32 0
%7 = bitcast [2 x i16]* %coerce.dive26 to i32*
%8 = load i32* %7, align 1
call void @takes_all(i64 %4, i16 %6, %struct.struct_large_nonchar* byval align 8 %c, i32 %8, i8* %arraydecay, i8* %arraydecay22, i32* %arraydecay23, i16* %arraydecay24, i32* %ptr, i32 %0, i32 %1, i32 %2)
ret void
}
define void @layout_sspreq() sspreq {
entry:
; Expected stack layout for sspreq is the same as sspstrong
;
; CHECK: layout_sspreq:
; r[[SP]] is used as an offset into the stack later
; CHECK: add r[[SP:[0-9]+]], sp, #84
; CHECK: bl get_scalar1
; CHECK: str r0, [sp, #76]
; CHECK: bl end_scalar1
; CHECK: bl get_scalar2
; CHECK: str r0, [sp, #72]
; CHECK: bl end_scalar2
; CHECK: bl get_scalar3
; CHECK: str r0, [sp, #68]
; CHECK: bl end_scalar3
; CHECK: bl get_addrof
; CHECK: str r0, [sp, #80]
; CHECK: bl end_addrof
; CHECK: get_small_nonchar
; CHECK: strh r0, [r[[SP]], #8]
; CHECK: bl end_small_nonchar
; CHECK: bl get_large_nonchar
; CHECK: str r0, [sp, #144]
; CHECK: bl end_large_nonchar
; CHECK: bl get_small_char
; CHECK: strb r0, [sp, #90]
; CHECK: bl end_small_char
; CHECK: bl get_large_char
; CHECK: strb r0, [sp, #136]
; CHECK: bl end_large_char
; CHECK: bl get_struct_large_char
; CHECK: strb r0, [sp, #128]
; CHECK: bl end_struct_large_char
; CHECK: bl get_struct_small_char
; CHECK: strb r0, [sp, #88]
; CHECK: bl end_struct_small_char
; CHECK: bl get_struct_large_nonchar
; CHECK: str r0, [sp, #96]
; CHECK: bl end_struct_large_nonchar
; CHECK: bl get_struct_small_nonchar
; CHECK: strh r0, [r[[SP]]]
; CHECK: bl end_struct_small_nonchar
%x = alloca i32, align 4
%y = alloca i32, align 4
%z = alloca i32, align 4
%ptr = alloca i32, align 4
%small2 = alloca [2 x i16], align 2
%large2 = alloca [8 x i32], align 16
%small = alloca [2 x i8], align 1
%large = alloca [8 x i8], align 1
%a = alloca %struct.struct_large_char, align 1
%b = alloca %struct.struct_small_char, align 1
%c = alloca %struct.struct_large_nonchar, align 8
%d = alloca %struct.struct_small_nonchar, align 2
%call = call i32 @get_scalar1()
store i32 %call, i32* %x, align 4
call void @end_scalar1()
%call1 = call i32 @get_scalar2()
store i32 %call1, i32* %y, align 4
call void @end_scalar2()
%call2 = call i32 @get_scalar3()
store i32 %call2, i32* %z, align 4
call void @end_scalar3()
%call3 = call i32 @get_addrof()
store i32 %call3, i32* %ptr, align 4
call void @end_addrof()
%call4 = call signext i16 @get_small_nonchar()
%arrayidx = getelementptr inbounds [2 x i16], [2 x i16]* %small2, i32 0, i64 0
store i16 %call4, i16* %arrayidx, align 2
call void @end_small_nonchar()
%call5 = call i32 @get_large_nonchar()
%arrayidx6 = getelementptr inbounds [8 x i32], [8 x i32]* %large2, i32 0, i64 0
store i32 %call5, i32* %arrayidx6, align 4
call void @end_large_nonchar()
%call7 = call signext i8 @get_small_char()
%arrayidx8 = getelementptr inbounds [2 x i8], [2 x i8]* %small, i32 0, i64 0
store i8 %call7, i8* %arrayidx8, align 1
call void @end_small_char()
%call9 = call signext i8 @get_large_char()
%arrayidx10 = getelementptr inbounds [8 x i8], [8 x i8]* %large, i32 0, i64 0
store i8 %call9, i8* %arrayidx10, align 1
call void @end_large_char()
%call11 = call signext i8 @get_struct_large_char()
%foo = getelementptr inbounds %struct.struct_large_char, %struct.struct_large_char* %a, i32 0, i32 0
%arrayidx12 = getelementptr inbounds [8 x i8], [8 x i8]* %foo, i32 0, i64 0
store i8 %call11, i8* %arrayidx12, align 1
call void @end_struct_large_char()
%call13 = call signext i8 @get_struct_small_char()
%foo14 = getelementptr inbounds %struct.struct_small_char, %struct.struct_small_char* %b, i32 0, i32 0
%arrayidx15 = getelementptr inbounds [2 x i8], [2 x i8]* %foo14, i32 0, i64 0
store i8 %call13, i8* %arrayidx15, align 1
call void @end_struct_small_char()
%call16 = call i32 @get_struct_large_nonchar()
%foo17 = getelementptr inbounds %struct.struct_large_nonchar, %struct.struct_large_nonchar* %c, i32 0, i32 0
%arrayidx18 = getelementptr inbounds [8 x i32], [8 x i32]* %foo17, i32 0, i64 0
store i32 %call16, i32* %arrayidx18, align 4
call void @end_struct_large_nonchar()
%call19 = call signext i16 @get_struct_small_nonchar()
%foo20 = getelementptr inbounds %struct.struct_small_nonchar, %struct.struct_small_nonchar* %d, i32 0, i32 0
%arrayidx21 = getelementptr inbounds [2 x i16], [2 x i16]* %foo20, i32 0, i64 0
store i16 %call19, i16* %arrayidx21, align 2
call void @end_struct_small_nonchar()
%arraydecay = getelementptr inbounds [8 x i8], [8 x i8]* %large, i32 0, i32 0
%arraydecay22 = getelementptr inbounds [2 x i8], [2 x i8]* %small, i32 0, i32 0
%arraydecay23 = getelementptr inbounds [8 x i32], [8 x i32]* %large2, i32 0, i32 0
%arraydecay24 = getelementptr inbounds [2 x i16], [2 x i16]* %small2, i32 0, i32 0
%0 = load i32* %x, align 4
%1 = load i32* %y, align 4
%2 = load i32* %z, align 4
%coerce.dive = getelementptr %struct.struct_large_char, %struct.struct_large_char* %a, i32 0, i32 0
%3 = bitcast [8 x i8]* %coerce.dive to i64*
%4 = load i64* %3, align 1
%coerce.dive25 = getelementptr %struct.struct_small_char, %struct.struct_small_char* %b, i32 0, i32 0
%5 = bitcast [2 x i8]* %coerce.dive25 to i16*
%6 = load i16* %5, align 1
%coerce.dive26 = getelementptr %struct.struct_small_nonchar, %struct.struct_small_nonchar* %d, i32 0, i32 0
%7 = bitcast [2 x i16]* %coerce.dive26 to i32*
%8 = load i32* %7, align 1
call void @takes_all(i64 %4, i16 %6, %struct.struct_large_nonchar* byval align 8 %c, i32 %8, i8* %arraydecay, i8* %arraydecay22, i32* %arraydecay23, i16* %arraydecay24, i32* %ptr, i32 %0, i32 %1, i32 %2)
ret void
}
define void @struct_with_protectable_arrays() sspstrong {
entry:
; Check to ensure that a structure which contains a small array followed by a
; large array is assigned to the stack properly as a large object.
; CHECK: struct_with_protectable_arrays:
; CHECK: bl get_struct_small_char
; CHECK: strb r0, [sp, #68]
; CHECK: bl end_struct_small_char
; CHECK: bl get_struct_large_char2
; CHECK: strb r0, [sp, #106]
; CHECK: bl end_struct_large_char2
%a = alloca %struct.struct_small_char, align 1
%b = alloca %struct.struct_large_char2, align 1
%d1 = alloca %struct.struct_large_nonchar, align 8
%d2 = alloca %struct.struct_small_nonchar, align 2
%call = call signext i8 @get_struct_small_char()
%foo = getelementptr inbounds %struct.struct_small_char, %struct.struct_small_char* %a, i32 0, i32 0
%arrayidx = getelementptr inbounds [2 x i8], [2 x i8]* %foo, i32 0, i64 0
store i8 %call, i8* %arrayidx, align 1
call void @end_struct_small_char()
%call1 = call signext i8 @get_struct_large_char2()
%foo2 = getelementptr inbounds %struct.struct_large_char2, %struct.struct_large_char2* %b, i32 0, i32 1
%arrayidx3 = getelementptr inbounds [8 x i8], [8 x i8]* %foo2, i32 0, i64 0
store i8 %call1, i8* %arrayidx3, align 1
call void @end_struct_large_char2()
%0 = bitcast %struct.struct_large_char2* %b to %struct.struct_large_char*
%coerce.dive = getelementptr %struct.struct_large_char, %struct.struct_large_char* %0, i32 0, i32 0
%1 = bitcast [8 x i8]* %coerce.dive to i64*
%2 = load i64* %1, align 1
%coerce.dive4 = getelementptr %struct.struct_small_char, %struct.struct_small_char* %a, i32 0, i32 0
%3 = bitcast [2 x i8]* %coerce.dive4 to i16*
%4 = load i16* %3, align 1
%coerce.dive5 = getelementptr %struct.struct_small_nonchar, %struct.struct_small_nonchar* %d2, i32 0, i32 0
%5 = bitcast [2 x i16]* %coerce.dive5 to i32*
%6 = load i32* %5, align 1
call void @takes_all(i64 %2, i16 %4, %struct.struct_large_nonchar* byval align 8 %d1, i32 %6, i8* null, i8* null, i32* null, i16* null, i32* null, i32 0, i32 0, i32 0)
ret void
}
declare i32 @get_scalar1()
declare void @end_scalar1()
declare i32 @get_scalar2()
declare void @end_scalar2()
declare i32 @get_scalar3()
declare void @end_scalar3()
declare i32 @get_addrof()
declare void @end_addrof()
declare signext i16 @get_small_nonchar()
declare void @end_small_nonchar()
declare i32 @get_large_nonchar()
declare void @end_large_nonchar()
declare signext i8 @get_small_char()
declare void @end_small_char()
declare signext i8 @get_large_char()
declare void @end_large_char()
declare signext i8 @get_struct_large_char()
declare void @end_struct_large_char()
declare signext i8 @get_struct_large_char2()
declare void @end_struct_large_char2()
declare signext i8 @get_struct_small_char()
declare void @end_struct_small_char()
declare i32 @get_struct_large_nonchar()
declare void @end_struct_large_nonchar()
declare signext i16 @get_struct_small_nonchar()
declare void @end_struct_small_nonchar()
declare void @takes_all(i64, i16, %struct.struct_large_nonchar* byval align 8, i32, i8*, i8*, i32*, i16*, i32*, i32, i32, i32)
Reference in New Issue View Git Blame Copy Permalink