CodeGen: Handle ConstantVector and undef in WinCOFF constant pools
The constant pool entry code for WinCOFF assumed that vector constants
would be formed using ConstantDataVector, it did not expect to see a
ConstantVector. Furthermore, it did not expect undef as one of the
elements of the vector.
ConstantVectors should be handled like ConstantDataVectors, treat Undef
as zero.
llvm-svn: 213038
diff --git a/llvm/test/CodeGen/X86/win_cst_pool.ll b/llvm/test/CodeGen/X86/win_cst_pool.ll
index 7bc046d..e8b853a 100644
--- a/llvm/test/CodeGen/X86/win_cst_pool.ll
+++ b/llvm/test/CodeGen/X86/win_cst_pool.ll
@@ -47,3 +47,20 @@
; CHECK: vec2:
; CHECK: movaps __xmm@00000001000200030004000500060007(%rip), %xmm0
; CHECK-NEXT: ret
+
+
+define <4 x float> @undef1() {
+ ret <4 x float> <float 1.0, float 1.0, float undef, float undef>
+
+; CHECK: .globl __xmm@00000000000000003f8000003f800000
+; CHECK-NEXT: .section .rdata,"rd",discard,__xmm@00000000000000003f8000003f800000
+; CHECK-NEXT: .align 16
+; CHECK-NEXT: __xmm@00000000000000003f8000003f800000:
+; CHECK-NEXT: .long 1065353216 # float 1
+; CHECK-NEXT: .long 1065353216 # float 1
+; CHECK-NEXT: .zero 4
+; CHECK-NEXT: .zero 4
+; CHECK: undef1:
+; CHECK: movaps __xmm@00000000000000003f8000003f800000(%rip), %xmm0
+; CHECK-NEXT: ret
+}