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a0c04be7b7
This enables use of the 'R' and 'T' memory constraints for inline ASM operands on SystemZ, which allow an index register as well as an immediate displacement. This patch includes corresponding documentation and test case updates. As with the last patch of this kind, I moved the 'm' constraint to the most general case, which is now 'T' (base + 20-bit signed displacement + index register). Author: colpell Differential Revision: http://reviews.llvm.org/D21239 llvm-svn: 272547
13 lines
319 B
LLVM
13 lines
319 B
LLVM
; Test the "m" asm constraint, which is equivalent to "T".
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu -no-integrated-as | FileCheck %s
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define void @f1(i64 %base) {
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; CHECK-LABEL: f1:
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; CHECK: blah 0(%r2)
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; CHECK: br %r14
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%addr = inttoptr i64 %base to i64 *
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call void asm "blah $0", "=*m" (i64 *%addr)
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ret void
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}
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