Generate the segmented stack prologue for fastcc too.
Patch by Brian Anderson.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147958 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/X86/segmented-stacks.ll b/test/CodeGen/X86/segmented-stacks.ll
index 27537c0..0e125d3 100644
--- a/test/CodeGen/X86/segmented-stacks.ll
+++ b/test/CodeGen/X86/segmented-stacks.ll
@@ -114,3 +114,58 @@
; X64-NEXT: ret
}
+
+define fastcc void @test_fastcc() {
+ %mem = alloca i32, i32 10
+ call void @dummy_use (i32* %mem, i32 10)
+ ret void
+
+; X32: test_fastcc:
+
+; X32: cmpl %gs:48, %esp
+; X32-NEXT: ja .LBB3_2
+
+; X32: pushl $0
+; X32-NEXT: pushl $60
+; X32-NEXT: calll __morestack
+; X32-NEXT: ret
+
+; X64: test_fastcc:
+
+; X64: cmpq %fs:112, %rsp
+; X64-NEXT: ja .LBB3_2
+
+; X64: movabsq $40, %r10
+; X64-NEXT: movabsq $0, %r11
+; X64-NEXT: callq __morestack
+; X64-NEXT: ret
+
+}
+
+define fastcc void @test_fastcc_large() {
+ %mem = alloca i32, i32 10000
+ call void @dummy_use (i32* %mem, i32 0)
+ ret void
+
+; X32: test_fastcc_large:
+
+; X32: leal -40012(%esp), %eax
+; X32-NEXT: cmpl %gs:48, %eax
+; X32-NEXT: ja .LBB4_2
+
+; X32: pushl $0
+; X32-NEXT: pushl $40012
+; X32-NEXT: calll __morestack
+; X32-NEXT: ret
+
+; X64: test_fastcc_large:
+
+; X64: leaq -40008(%rsp), %r11
+; X64-NEXT: cmpq %fs:112, %r11
+; X64-NEXT: ja .LBB4_2
+
+; X64: movabsq $40008, %r10
+; X64-NEXT: movabsq $0, %r11
+; X64-NEXT: callq __morestack
+; X64-NEXT: ret
+}