fast-isel sret calls, try 2. We actually do need to do something on x86-32. rdar://problem/9303592 .

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130429 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 28 insertions, 0 deletions

diff --git a/test/CodeGen/X86/fast-isel-x86-64.ll b/test/CodeGen/X86/fast-isel-x86-64.ll
index a810af5c78..c4afc10ffa 100644
--- a/test/CodeGen/X86/fast-isel-x86-64.ll
+++ b/test/CodeGen/X86/fast-isel-x86-64.ll
@@ -239,6 +239,19 @@ define void @test19(double* %p1) {
 ; CHECK: pxor
 }
 
+; Check that we fast-isel sret
+%struct.a = type { i64, i64, i64 }
+define void @test20() nounwind ssp {
+entry:
+  %tmp = alloca %struct.a, align 8
+  call void @test20sret(%struct.a* sret %tmp)
+  ret void
+; CHECK: test20:
+; CHECK: leaq (%rsp), %rdi
+; CHECK: callq _test20sret
+}
+declare void @test20sret(%struct.a* sret)
+
 ; Check that -0.0 is not materialized using pxor
 define void @test21(double* %p1) {
   store double -0.0, double* %p1
diff --git a/test/CodeGen/X86/fast-isel-x86.ll b/test/CodeGen/X86/fast-isel-x86.ll
index fba96718ad..19972f74b2 100644
--- a/test/CodeGen/X86/fast-isel-x86.ll
+++ b/test/CodeGen/X86/fast-isel-x86.ll
@@ -31,3 +31,18 @@ define i32 @test2() nounwind {
   %t = load i32* @HHH
   ret i32 %t
 }
+
+; Check that we fast-isel sret, and handle the callee-pops behavior correctly.
+%struct.a = type { i64, i64, i64 }
+define void @test3() nounwind ssp {
+entry:
+  %tmp = alloca %struct.a, align 8
+  call void @test3sret(%struct.a* sret %tmp)
+  ret void
+; CHECK: test3:
+; CHECK: subl $44
+; CHECK: leal 16(%esp)
+; CHECK: calll _test3sret
+; CHECK: addl $40
+}
+declare void @test3sret(%struct.a* sret)