be08e452f3
Constraint `*m` should be used when the address of a variable is passed as a value. And the constraint is missing for MS inline assembly when sth is written to the address of the variable. The missing would cause FE delete the definition of the static varible, and then result in "undefined reference to xxx" issue. Reviewed By: xiangzhangllvm Differential Revision: https://reviews.llvm.org/D113096
35 lines
1.3 KiB
C
35 lines
1.3 KiB
C
// REQUIRES: x86-registered-target
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// RUN: %clang_cc1 %s -fasm-blocks -triple i386-apple-darwin10 -emit-llvm -o - | FileCheck %s
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int gVar;
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void t1() {
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// CHECK: add eax, dword ptr ${{[0-9]}}[eax]
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__asm add eax, dword ptr gVar[eax]
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// CHECK: add dword ptr ${{[0-9]}}[eax], eax
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__asm add dword ptr [eax+gVar], eax
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// CHECK: add ebx, dword ptr ${{[0-9]}}[ebx + $$270]
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__asm add ebx, dword ptr gVar[271 - 82 + 81 + ebx]
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// CHECK: add dword ptr ${{[0-9]}}[ebx + $$828], ebx
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__asm add dword ptr [ebx + gVar + 828], ebx
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// CHECK: add ecx, dword ptr ${{[0-9]}}[ecx + ecx * $$4 + $$4590]
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__asm add ecx, dword ptr gVar[4590 + ecx + ecx*4]
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// CHECK: add dword ptr ${{[0-9]}}[ecx + ecx * $$8 + $$73], ecx
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__asm add dword ptr [gVar + ecx + 45 + 23 - 53 + 60 - 2 + ecx*8], ecx
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// CHECK: add ${{[0-9]}}[ecx + ebx + $$7], eax
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__asm add 1 + 1 + 2 + 3[gVar + ecx + ebx], eax
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}
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void t2() {
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int lVar;
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// CHECK: mov eax, dword ptr ${{[0-9]}}[eax]
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__asm mov eax, dword ptr lVar[eax]
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// CHECK: mov dword ptr ${{[0-9]}}[eax], eax
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__asm mov dword ptr [eax+lVar], eax
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// CHECK: mov ebx, dword ptr ${{[0-9]}}[ebx + $$270]
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__asm mov ebx, dword ptr lVar[271 - 82 + 81 + ebx]
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// CHECK: mov dword ptr ${{[0-9]}}[ebx + $$828], ebx
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__asm mov dword ptr [ebx + lVar + 828], ebx
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// CHECK: mov ${{[0-9]}}[ebx + $$47], eax
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__asm mov 5 + 8 + 13 + 21[lVar + ebx], eax
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}
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