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llvm-mirror/test/CodeGen/SystemZ/asm-03.ll
Ulrich Weigand 1431b3c2f5 [SystemZ] Add CodeGen test cases
This adds all CodeGen tests for the SystemZ target.

This version of the patch incorporates feedback from a review by
Sean Silva.  Thanks to all reviewers!

Patch by Richard Sandiford.

llvm-svn: 181204
2013-05-06 16:17:29 +00:00

17 lines
465 B
LLVM

; Test the "S" asm constraint, which accepts addresses that have a base
; and a 20-bit displacement.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
define void @f1(i64 %base) {
; CHECK: f1:
; CHECK: blah 0(%r2)
; CHECK: br %r14
%addr = inttoptr i64 %base to i64 *
call void asm "blah $0", "=*S" (i64 *%addr)
ret void
}
; FIXME: at the moment the precise constraint is not passed down to
; target code, so we must conservatively treat "S" as "Q".