d926ec35b7
In GCC,
```
static int a;
int foo() {
asm("# %a0" : : "i"(&a));
}
```
lowers to `# a(%rip)` regardless of the PIC mode. This PR follow suits
for ELF -fno-pic, matching ELF -fpic (asm-modifier-pic.ll) and Mach-O
(which defaults to PIC).
Close https://github.com/llvm/llvm-project/issues/139001
Pull Request: https://github.com/llvm/llvm-project/pull/139040
89 lines
2.4 KiB
LLVM
89 lines
2.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 4
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; RUN: llc -mtriple=i686 < %s | FileCheck %s --check-prefixes=CHECK,X86
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; RUN: llc -mtriple=x86_64 < %s | FileCheck %s --check-prefixes=CHECK,X64
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;; Certain constraints should not be used for PIC. See asm-modifier-pic.ll for PIC-specific tests.
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@var = internal global i32 0, align 4
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define dso_local void @test_a() nounwind {
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; X86-LABEL: test_a:
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; X86: # %bb.0:
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; X86-NEXT: #APP
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; X86-NEXT: #TEST 42 var#
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; X86-NEXT: #NO_APP
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; X86-NEXT: retl
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;
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; X64-LABEL: test_a:
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; X64: # %bb.0:
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; X64-NEXT: #APP
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; X64-NEXT: #TEST 42 var(%rip)#
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; X64-NEXT: #NO_APP
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; X64-NEXT: retq
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tail call void asm sideeffect "#TEST ${0:a} ${1:a}#", "i,i"(i32 42, ptr @var)
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ret void
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}
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define dso_local void @test_c() nounwind {
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; CHECK-LABEL: test_c:
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; CHECK: # %bb.0:
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; CHECK-NEXT: #APP
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; CHECK-NEXT: #TEST 42 var#
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; CHECK-NEXT: #NO_APP
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; CHECK-NEXT: ret{{[l|q]}}
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tail call void asm sideeffect "#TEST ${0:c} ${1:c}#", "i,i"(i32 42, ptr @var)
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ret void
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}
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define dso_local void @test_k() nounwind {
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; CHECK-LABEL: test_k:
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; CHECK: # %bb.0:
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; CHECK-NEXT: #APP
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; CHECK-NEXT: movl %fs:0, %eax
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; CHECK-NEXT: #NO_APP
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%tmp = tail call i64 asm "movl %fs:${1:a}, ${0:k}", "=q,irm,~{dirflag},~{fpsr},~{flags}"(i64 0)
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unreachable
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}
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define dso_local void @test_n() nounwind {
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; CHECK-LABEL: test_n:
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; CHECK: # %bb.0:
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; CHECK-NEXT: #APP
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; CHECK-NEXT: #TEST 37
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; CHECK-NEXT: #NO_APP
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; CHECK-NEXT: ret{{[l|q]}}
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tail call void asm sideeffect "#TEST ${0:n}", "i"(i32 -37)
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ret void
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}
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define void @test_q() {
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; CHECK-LABEL: test_q:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: #APP
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; CHECK-NEXT: #TEST 0
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; CHECK-NEXT: #NO_APP
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; CHECK-NEXT: ret{{[l|q]}}
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entry:
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call void asm sideeffect "#TEST ${0:q}", "=*imr"( ptr elementtype( i64) null )
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ret void
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}
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define void @test_V(ptr %p) {
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; X86-LABEL: test_V:
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; X86: # %bb.0: # %entry
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; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NEXT: #APP
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; X86-NEXT: calll __x86_indirect_thunk_eax
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; X86-NEXT: #NO_APP
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; X86-NEXT: retl
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;
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; X64-LABEL: test_V:
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; X64: # %bb.0: # %entry
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; X64-NEXT: #APP
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; X64-NEXT: callq __x86_indirect_thunk_rdi
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; X64-NEXT: #NO_APP
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; X64-NEXT: retq
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entry:
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tail call void asm sideeffect "call __x86_indirect_thunk_${0:V}", "r,~{dirflag},~{fpsr},~{flags}"(ptr %p)
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ret void
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}
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