1 files changed, 45 insertions, 0 deletions
diff --git a/test/CodeGen/PowerPC/asm-constraints.ll b/test/CodeGen/PowerPC/asm-constraints.ll
new file mode 100644
index 000000000000..9bf8b75e0ace
--- /dev/null
+++ b/test/CodeGen/PowerPC/asm-constraints.ll
@@ -0,0 +1,45 @@
+; RUN: llc < %s -mcpu=pwr8 | FileCheck %s
+
+; Generated from following C code:
+;
+; void foo (int result, char *addr) {
+;   __asm__ __volatile__ (
+;     "ld%U1%X1 %0,%1\n"
+;     "cmpw %0,%0\n"
+;     "bne- 1f\n"
+;     "1: isync\n"
+;     : "=r" (result)
+;     : "m"(*addr) : "memory", "cr0");
+; }
+
+target datalayout = "e-m:e-i64:64-n32:64"
+target triple = "powerpc64le-unknown-linux-gnu"
+
+; Function Attrs: nounwind
+; Check that we accept 'U' and 'X' constraints.
+define void @foo(i32 signext %result, i8* %addr) #0 {
+entry:
+  %result.addr = alloca i32, align 4
+  %addr.addr = alloca i8*, align 8
+  store i32 %result, i32* %result.addr, align 4
+  store i8* %addr, i8** %addr.addr, align 8
+  %0 = load i8** %addr.addr, align 8
+  %1 = call i32 asm sideeffect "ld${1:U}${1:X} $0,$1\0Acmpw $0,$0\0Abne- 1f\0A1: isync\0A", "=r,*m,~{memory},~{cr0}"(i8* %0) #1, !srcloc !1
+  store i32 %1, i32* %result.addr, align 4
+  ret void
+}
+
+; CHECK-LABEL: @foo
+; CHECK: ld [[REG:[0-9]+]], 0(4)
+; CHECK: cmpw 0, [[REG]], [[REG]]
+; CHECK: bne- 0, .Ltmp[[TMP:[0-9]+]]
+; CHECK: .Ltmp[[TMP]]:
+; CHECK: isync
+
+attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
+attributes #1 = { nounwind }
+
+!llvm.ident = !{!0}
+
+!0 = !{!"clang version 3.6.0 (trunk 217557)"}
+!1 = !{i32 67, i32 91, i32 110, i32 126}