CodeGenPrepare: Don't match addressing modes through addrspacecast

This was resulting in the addrspacecast being removed and incorrectly
replaced with a ptrtoint when sinking.

llvm-svn: 238217

1 files changed, 49 insertions, 0 deletions

diff --git a/llvm/test/Transforms/CodeGenPrepare/R600/no-sink-addrspacecast.ll b/llvm/test/Transforms/CodeGenPrepare/R600/no-sink-addrspacecast.ll
new file mode 100644
index 00000000000..f6f898fae21
--- /dev/null
+++ b/llvm/test/Transforms/CodeGenPrepare/R600/no-sink-addrspacecast.ll
@@ -0,0 +1,49 @@
+; RUN: opt -S -codegenprepare -mtriple=amdgcn-unknown-unknown < %s | FileCheck -check-prefix=ASC -check-prefix=COMMON %s
+
+; COMMON-LABEL: @test_sink_ptrtoint_asc(
+; ASC: addrspacecast
+; ASC-NOT: ptrtoint
+; ASC-NOT: inttoptr
+
+define void @test_sink_ptrtoint_asc(float addrspace(1)* nocapture %arg, float addrspace(1)* nocapture readonly %arg1, float addrspace(3)* %arg2) #0 {
+bb:
+  %tmp = getelementptr inbounds float, float addrspace(3)* %arg2, i32 16
+  %tmp2 = tail call i32 @llvm.r600.read.tidig.x() #1
+  %tmp3 = sext i32 %tmp2 to i64
+  %tmp4 = getelementptr inbounds float, float addrspace(1)* %arg1, i64 %tmp3
+  %tmp5 = load float, float addrspace(1)* %tmp4, align 4
+  %tmp6 = addrspacecast float addrspace(3)* %tmp to float addrspace(4)*
+  %tmp7 = fcmp olt float %tmp5, 8.388608e+06
+  br i1 %tmp7, label %bb8, label %bb14
+
+bb8:                                              ; preds = %bb
+  %tmp9 = tail call float @llvm.fma.f32(float %tmp5, float 0x3FE45F3060000000, float 5.000000e-01) #1
+  %tmp10 = fmul float %tmp9, 0x3E74442D00000000
+  %tmp11 = fsub float -0.000000e+00, %tmp10
+  %tmp12 = tail call float @llvm.fma.f32(float %tmp9, float 0x3E74442D00000000, float %tmp11) #1
+  store float %tmp12, float addrspace(4)* %tmp6, align 4
+  %tmp13 = fsub float -0.000000e+00, %tmp12
+  br label %bb15
+
+bb14:                                             ; preds = %bb
+  store float 2.000000e+00, float addrspace(4)* %tmp6, align 4
+  br label %bb15
+
+bb15:                                             ; preds = %bb14, %bb8
+  %tmp16 = phi float [ 0.000000e+00, %bb14 ], [ %tmp13, %bb8 ]
+  %tmp17 = fsub float -0.000000e+00, %tmp16
+  %tmp18 = tail call float @llvm.fma.f32(float 1.000000e+00, float 0x3FF0AAAAA0000000, float %tmp17) #1
+  %tmp19 = fsub float 2.187500e-01, %tmp18
+  %tmp20 = fsub float 7.187500e-01, %tmp19
+  %tmp21 = fcmp ogt float %tmp5, 1.600000e+01
+  %tmp22 = select i1 %tmp21, float 0x7FF8000000000000, float %tmp20
+  %tmp23 = getelementptr inbounds float, float addrspace(1)* %arg, i64 %tmp3
+  store float %tmp22, float addrspace(1)* %tmp23, align 4
+  ret void
+}
+
+declare float @llvm.fma.f32(float, float, float) #1
+declare i32 @llvm.r600.read.tidig.x() #1
+
+attributes #0 = { nounwind }
+attributes #1 = { nounwind readnone }