46f83caebc
This patch adds support for inline assembly address operands using the "p" constraint on X86 and SystemZ. This was in fact broken on X86 (see example at https://reviews.llvm.org/D110267, Nov 23). These operands should probably be treated the same as memory operands by CodeGenPrepare, which have been commented with "TODO" there. Review: Xiang Zhang and Ulrich Weigand Differential Revision: https://reviews.llvm.org/D122220
58 lines
1.4 KiB
LLVM
58 lines
1.4 KiB
LLVM
; RUN: llc -mtriple=s390x-linux-gnu < %s | FileCheck %s
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@Addr = global i64 0, align 8
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@A = global i64* null, align 8
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@Idx = global i64 0, align 8
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define i64 @fun_BD12_p() {
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; CHECK-LABEL: fun_BD12_p:
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; CHECK: #APP
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; CHECK: lay %r2, 800(%r1)
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entry:
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%0 = load i64*, i64** @A
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%arrayidx = getelementptr inbounds i64, i64* %0, i64 100
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%1 = tail call i64 asm "lay $0, $1", "=r,p"(i64* nonnull %arrayidx)
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store i64 %1, i64* @Addr
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ret i64 %1
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}
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define i64 @fun_BDX12_p() {
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; CHECK-LABEL: fun_BDX12_p:
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; CHECK: #APP
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; CHECK: lay %r2, 800(%r1,%r2)
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entry:
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%0 = load i64*, i64** @A
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%1 = load i64, i64* @Idx
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%add = add nsw i64 %1, 100
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%arrayidx = getelementptr inbounds i64, i64* %0, i64 %add
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%2 = tail call i64 asm "lay $0, $1", "=r,p"(i64* %arrayidx)
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store i64 %2, i64* @Addr
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ret i64 %2
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}
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define i64 @fun_BD20_p() {
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; CHECK-LABEL: fun_BD20_p:
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; CHECK: #APP
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; CHECK: lay %r2, 8000(%r1)
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entry:
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%0 = load i64*, i64** @A
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%arrayidx = getelementptr inbounds i64, i64* %0, i64 1000
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%1 = tail call i64 asm "lay $0, $1", "=r,p"(i64* nonnull %arrayidx)
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store i64 %1, i64* @Addr
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ret i64 %1
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}
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define i64 @fun_BDX20_p() {
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; CHECK-LABEL: fun_BDX20_p:
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; CHECK: #APP
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; CHECK: lay %r2, 8000(%r1,%r2)
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entry:
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%0 = load i64*, i64** @A
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%1 = load i64, i64* @Idx
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%add = add nsw i64 %1, 1000
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%arrayidx = getelementptr inbounds i64, i64* %0, i64 %add
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%2 = tail call i64 asm "lay $0, $1", "=r,p"(i64* %arrayidx)
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store i64 %2, i64* @Addr
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ret i64 %2
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}
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