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| author | Eric Astor <epastor@google.com> | 2019-12-30 14:33:56 -0500 |
|---|---|---|
| committer | Eric Astor <epastor@google.com> | 2019-12-30 14:35:26 -0500 |
| commit | 4a7aa252a32a94b1bb61b3dc7f027b4a27ae334f (patch) | |
| tree | 3f0579bbc96ff818ae4bc5de945b687f72d2f586 /clang/test/CodeGen/ms-inline-asm.c | |
| parent | 7fa0bfe7d580e2b96b8d7f5bd0470287857e84cc (diff) | |
| download | bcm5719-llvm-4a7aa252a32a94b1bb61b3dc7f027b4a27ae334f.tar.gz bcm5719-llvm-4a7aa252a32a94b1bb61b3dc7f027b4a27ae334f.zip | |
[X86][AsmParser] re-introduce 'offset' operator
Summary:
Amend MS offset operator implementation, to more closely fit with its MS counterpart:
1. InlineAsm: evaluate non-local source entities to their (address) location
2. Provide a mean with which one may acquire the address of an assembly label via MS syntax, rather than yielding a memory reference (i.e. "offset asm_label" and "$asm_label" should be synonymous
3. address PR32530
Based on http://llvm.org/D37461
Fix broken test where the break appears unrelated.
- Set up appropriate memory-input rewrites for variable references.
- Intel-dialect assembly printing now correctly handles addresses by adding "offset".
- Pass offsets as immediate operands (using "r" constraint for offsets of locals).
Reviewed By: rnk
Differential Revision: https://reviews.llvm.org/D71436
Diffstat (limited to 'clang/test/CodeGen/ms-inline-asm.c')
| -rw-r--r-- | clang/test/CodeGen/ms-inline-asm.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/clang/test/CodeGen/ms-inline-asm.c b/clang/test/CodeGen/ms-inline-asm.c index 0c9b35a6452..17526f52231 100644 --- a/clang/test/CodeGen/ms-inline-asm.c +++ b/clang/test/CodeGen/ms-inline-asm.c @@ -190,14 +190,20 @@ void t15() { // CHECK: mov eax, $1 __asm mov eax, offset gvar ; eax = address of gvar // CHECK: mov eax, $2 -// CHECK: "*m,r,r,~{eax},~{dirflag},~{fpsr},~{flags}"(i32* %{{.*}}, i32* %{{.*}}, i32* @{{.*}}) + __asm mov eax, offset gvar+1 ; eax = 1 + address of gvar +// CHECK: mov eax, $3 + $$1 + __asm mov eax, 1+offset gvar ; eax = 1 + address of gvar +// CHECK: mov eax, $4 + $$1 + __asm mov eax, 1+offset gvar+1 ; eax = 2 + address of gvar +// CHECK: mov eax, $5 + $$2 +// CHECK: "*m,r,i,i,i,i,~{eax},~{dirflag},~{fpsr},~{flags}"(i32* %{{.*}}, i32* %{{.*}}, i32* @{{.*}}, i32* @{{.*}}, i32* @{{.*}}, i32* @{{.*}}) } void t16() { int var = 10; - __asm mov [eax], offset var + __asm mov dword ptr [eax], offset var // CHECK: t16 -// CHECK: call void asm sideeffect inteldialect "mov [eax], $0", "r,~{dirflag},~{fpsr},~{flags}"(i32* %{{.*}}) +// CHECK: call void asm sideeffect inteldialect "mov dword ptr [eax], $0", "r,~{dirflag},~{fpsr},~{flags}"(i32* %{{.*}}) } void t17() { |
