mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-22 09:29:31 +00:00
5a70dd1d82
Similar to gep (r230786) and load (r230794) changes.
Similar migration script can be used to update test cases, which
successfully migrated all of LLVM and Polly, but about 4 test cases
needed manually changes in Clang.
(this script will read the contents of stdin and massage it into stdout
- wrap it in the 'apply.sh' script shown in previous commits + xargs to
apply it over a large set of test cases)
import fileinput
import sys
import re
rep = re.compile(r"(getelementptr(?:\s+inbounds)?\s*\()((<\d*\s+x\s+)?([^@]*?)(|\s*addrspace\(\d+\))\s*\*(?(3)>)\s*)(?=$|%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|zeroinitializer|<|\[\[[a-zA-Z]|\{\{)", re.MULTILINE | re.DOTALL)
def conv(match):
line = match.group(1)
line += match.group(4)
line += ", "
line += match.group(2)
return line
line = sys.stdin.read()
off = 0
for match in re.finditer(rep, line):
sys.stdout.write(line[off:match.start()])
sys.stdout.write(conv(match))
off = match.end()
sys.stdout.write(line[off:])
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232184 91177308-0d34-0410-b5e6-96231b3b80d8
98 lines
3.0 KiB
LLVM
98 lines
3.0 KiB
LLVM
; RUN: opt < %s -instcombine -S | FileCheck %s
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target datalayout = "E-p:64:64:64-p1:32:32:32-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
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; Instcombine should be able to prove vector alignment in the
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; presence of a few mild address computation tricks.
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; CHECK-LABEL: @test0(
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; CHECK: align 16
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define void @test0(i8* %b, i64 %n, i64 %u, i64 %y) nounwind {
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entry:
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%c = ptrtoint i8* %b to i64
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%d = and i64 %c, -16
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%e = inttoptr i64 %d to double*
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%v = mul i64 %u, 2
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%z = and i64 %y, -2
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%t1421 = icmp eq i64 %n, 0
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br i1 %t1421, label %return, label %bb
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bb:
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%i = phi i64 [ %indvar.next, %bb ], [ 20, %entry ]
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%j = mul i64 %i, %v
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%h = add i64 %j, %z
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%t8 = getelementptr double, double* %e, i64 %h
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%p = bitcast double* %t8 to <2 x double>*
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store <2 x double><double 0.0, double 0.0>, <2 x double>* %p, align 8
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%indvar.next = add i64 %i, 1
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%exitcond = icmp eq i64 %indvar.next, %n
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br i1 %exitcond, label %return, label %bb
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return:
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ret void
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}
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; When we see a unaligned load from an insufficiently aligned global or
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; alloca, increase the alignment of the load, turning it into an aligned load.
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; CHECK-LABEL: @test1(
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; CHECK: tmp = load
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; CHECK: GLOBAL{{.*}}align 16
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@GLOBAL = internal global [4 x i32] zeroinitializer
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define <16 x i8> @test1(<2 x i64> %x) {
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entry:
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%tmp = load <16 x i8>, <16 x i8>* bitcast ([4 x i32]* @GLOBAL to <16 x i8>*), align 1
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ret <16 x i8> %tmp
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}
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@GLOBAL_as1 = internal addrspace(1) global [4 x i32] zeroinitializer
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define <16 x i8> @test1_as1(<2 x i64> %x) {
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; CHECK-LABEL: @test1_as1(
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; CHECK: tmp = load
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; CHECK: GLOBAL_as1{{.*}}align 16
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%tmp = load <16 x i8>, <16 x i8> addrspace(1)* bitcast ([4 x i32] addrspace(1)* @GLOBAL_as1 to <16 x i8> addrspace(1)*), align 1
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ret <16 x i8> %tmp
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}
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@GLOBAL_as1_gep = internal addrspace(1) global [8 x i32] zeroinitializer
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define <16 x i8> @test1_as1_gep(<2 x i64> %x) {
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; CHECK-LABEL: @test1_as1_gep(
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; CHECK: tmp = load
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; CHECK: GLOBAL_as1_gep{{.*}}align 16
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%tmp = load <16 x i8>, <16 x i8> addrspace(1)* bitcast (i32 addrspace(1)* getelementptr ([8 x i32], [8 x i32] addrspace(1)* @GLOBAL_as1_gep, i16 0, i16 4) to <16 x i8> addrspace(1)*), align 1
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ret <16 x i8> %tmp
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}
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; When a load or store lacks an explicit alignment, add one.
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; CHECK-LABEL: @test2(
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; CHECK: load double, double* %p, align 8
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; CHECK: store double %n, double* %p, align 8
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define double @test2(double* %p, double %n) nounwind {
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%t = load double, double* %p
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store double %n, double* %p
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ret double %t
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}
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declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) nounwind
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declare void @use(i8*)
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%struct.s = type { i32, i32, i32, i32 }
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define void @test3(%struct.s* sret %a4) {
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; Check that the alignment is bumped up the alignment of the sret type.
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; CHECK-LABEL: @test3(
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%a4.cast = bitcast %struct.s* %a4 to i8*
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call void @llvm.memset.p0i8.i64(i8* %a4.cast, i8 0, i64 16, i32 1, i1 false)
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; CHECK: call void @llvm.memset.p0i8.i64(i8* %a4.cast, i8 0, i64 16, i32 4, i1 false)
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call void @use(i8* %a4.cast)
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ret void
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}
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