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| author | Hal Finkel <hfinkel@anl.gov> | 2012-11-05 18:18:42 +0000 |
|---|---|---|
| committer | Hal Finkel <hfinkel@anl.gov> | 2012-11-05 18:18:42 +0000 |
| commit | 827b7a070d349737f1d6ff63115e0cbb0c031f9c (patch) | |
| tree | d76fb409370c613f177488b1917298c226c1f521 /test/CodeGen/PowerPC | |
| parent | cfe09ed28d8a65b671e8b7a716a933e98e810e32 (diff) | |
| download | external_llvm-827b7a070d349737f1d6ff63115e0cbb0c031f9c.zip external_llvm-827b7a070d349737f1d6ff63115e0cbb0c031f9c.tar.gz external_llvm-827b7a070d349737f1d6ff63115e0cbb0c031f9c.tar.bz2 | |
Add support for the PowerPC-specific inline asm Z constraint and y modifier.
The Z constraint specifies an r+r memory address, and the y modifier expands
to the "r, r" in the asm string. For this initial implementation, the base
register is forced to r0 (which has the special meaning of 0 for r+r addressing
on PowerPC) and the full address is taken in the second register. In the
future, this should be improved.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167388 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/PowerPC')
| -rw-r--r-- | test/CodeGen/PowerPC/asm-Zy.ll | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/test/CodeGen/PowerPC/asm-Zy.ll b/test/CodeGen/PowerPC/asm-Zy.ll new file mode 100644 index 0000000..691165f --- /dev/null +++ b/test/CodeGen/PowerPC/asm-Zy.ll @@ -0,0 +1,14 @@ +target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f128:128:128-v128:128:128-n32:64" +target triple = "powerpc64-bgq-linux" +; RUN: llc < %s -march=ppc64 -mcpu=a2 | FileCheck %s + +define i32 @zytest(i32 %a) nounwind { +entry: +; CHECK: @zytest + %r = call i32 asm "lwbrx $0, ${1:y}", "=r,Z"(i32 %a) nounwind, !srcloc !0 + ret i32 %r +; CHECK: lwbrx 3, 0, +} + +!0 = metadata !{i32 101688} + |