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321b5c87a4
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
16 lines
591 B
LLVM
16 lines
591 B
LLVM
; RUN: llc -mtriple=x86_64-unknown-linux-gnu -x86-asm-syntax=intel -relocation-model=static < %s | FileCheck %s
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; Test we are emitting the 'offset' operator upon an immediate reference of a label:
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; The emitted 'att-equivalent' of this one is "movl $.L.str, %eax"
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@.str = private unnamed_addr constant [1 x i8] zeroinitializer, align 1
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define i8* @test_offset_operator() {
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; CHECK-LABEL: test_offset_operator:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: mov eax, offset .L.str
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; CHECK-NEXT: ret
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entry:
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ret i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str, i64 0, i64 0)
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}
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