Avoid rewriting instructions twice.

[oota-llvm.git] / test / CodeGen / ARM / arguments.ll

diff --git a/test/CodeGen/ARM/arguments.ll b/test/CodeGen/ARM/arguments.ll
index 018be239e30ae663a8ccf9671761168c15c3357e..a8b42e63b71f23d2b8ee2c8e441050fc0ec8b593 100644 (file)
--- a/test/CodeGen/ARM/arguments.ll
+++ b/test/CodeGen/ARM/arguments.ll
@@ -1,10 +1,43 @@
-; RUN: llvm-as < %s | llc -march=arm &&
-; RUN: llvm-as < %s | llc -mtriple=arm-linux-gnueabi | grep "mov r0, r2" | wc -l | grep 1 &&
-; RUN: llvm-as < %s | llc -mtriple=arm-apple-darwin | grep "mov r0, r1" | wc -l | grep 1
+; RUN: llc < %s -mtriple=arm-linux-gnueabi -mattr=+vfp2 | FileCheck %s -check-prefix=ELF
+; RUN: llc < %s -mtriple=arm-apple-darwin -mattr=+vfp2 | FileCheck %s -check-prefix=DARWIN
 
-define i32 @f(i32 %a, i64 %b) {
-        %tmp = call i32 @g(i64 %b)
+define i32 @f1(i32 %a, i64 %b) {
+; ELF: f1:
+; ELF: mov r0, r2
+; DARWIN: f1:
+; DARWIN: mov r0, r1
+        %tmp = call i32 @g1(i64 %b)
         ret i32 %tmp
 }
 
-declare i32 @g(i64)
\ No newline at end of file
+; test that allocating the double to r2/r3 makes r1 unavailable on gnueabi.
+define i32 @f2() nounwind optsize {
+; ELF: f2:
+; ELF: mov  [[REGISTER:(r[0-9]+)]], #128
+; ELF: str  [[REGISTER]], [
+; DARWIN: f2:
+; DARWIN: mov  r3, #128
+entry:
+  %0 = tail call i32 (i32, ...)* @g2(i32 5, double 1.600000e+01, i32 128) nounwind optsize ; <i32> [#uses=1]
+  %not. = icmp ne i32 %0, 128                     ; <i1> [#uses=1]
+  %.0 = zext i1 %not. to i32                      ; <i32> [#uses=1]
+  ret i32 %.0
+}
+
+; test that on gnueabi a 64 bit value at this position will cause r3 to go
+; unused and the value stored in [sp]
+; ELF: f3:
+; ELF: ldr r0, [sp]
+; ELF-NEXT: mov pc, lr
+; DARWIN: f3:
+; DARWIN: mov r0, r3
+; DARWIN-NEXT: mov pc, lr
+define i32 @f3(i32 %i, i32 %j, i32 %k, i64 %l, ...) {
+entry:
+  %0 = trunc i64 %l to i32
+  ret i32 %0
+}
+
+declare i32 @g1(i64)
+
+declare i32 @g2(i32 %i, ...)