AMDGPU: Fix v2i64/v2f64 bitcasts
These operations tend to get promoted away to v4i32 so
this doesn't happen often.
llvm-svn: 270740
diff --git a/llvm/test/CodeGen/AMDGPU/bitcast.ll b/llvm/test/CodeGen/AMDGPU/bitcast.ll
index ab08436..87ef597 100644
--- a/llvm/test/CodeGen/AMDGPU/bitcast.ll
+++ b/llvm/test/CodeGen/AMDGPU/bitcast.ll
@@ -1,4 +1,4 @@
-; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
+; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
; This test just checks that the compiler doesn't crash.
@@ -75,3 +75,35 @@
store <2 x i32> %bc, <2 x i32> addrspace(1)* %out, align 8
ret void
}
+
+; FUNC-LABEL: {{^}}bitcast_v2i64_to_v2f64:
+define void @bitcast_v2i64_to_v2f64(i32 %cond, <2 x double> addrspace(1)* %out, <2 x i64> %value) {
+entry:
+ %cmp0 = icmp eq i32 %cond, 0
+ br i1 %cmp0, label %if, label %end
+
+if:
+ %cast = bitcast <2 x i64> %value to <2 x double>
+ br label %end
+
+end:
+ %phi = phi <2 x double> [zeroinitializer, %entry], [%cast, %if]
+ store <2 x double> %phi, <2 x double> addrspace(1)* %out
+ ret void
+}
+
+; FUNC-LABEL: {{^}}bitcast_v2f64_to_v2i64:
+define void @bitcast_v2f64_to_v2i64(i32 %cond, <2 x i64> addrspace(1)* %out, <2 x double> %value) {
+entry:
+ %cmp0 = icmp eq i32 %cond, 0
+ br i1 %cmp0, label %if, label %end
+
+if:
+ %cast = bitcast <2 x double> %value to <2 x i64>
+ br label %end
+
+end:
+ %phi = phi <2 x i64> [zeroinitializer, %entry], [%cast, %if]
+ store <2 x i64> %phi, <2 x i64> addrspace(1)* %out
+ ret void
+}