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authorBill Wendling <isanbard@gmail.com>2013-12-07 21:24:29 +0000
committerBill Wendling <isanbard@gmail.com>2013-12-07 21:24:29 +0000
commitfccbdd27bcd604e232dfa8c77105dcb625da305e (patch)
treed6f151df44549fe3f6d56b8c1ab5192b3a28d860 /test/Transforms
parentd9979c53c324464fd8acf36e686886d2f2810add (diff)
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Merging r196638:
------------------------------------------------------------------------ r196638 | arsenm | 2013-12-06 18:58:45 -0800 (Fri, 06 Dec 2013) | 1 line Fix assert with copy from global through addrspacecast ------------------------------------------------------------------------ git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_34@196668 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms')
-rw-r--r--test/Transforms/InstCombine/addrspacecast.ll38
1 files changed, 38 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/addrspacecast.ll b/test/Transforms/InstCombine/addrspacecast.ll
index 3ddeb25..d908b55 100644
--- a/test/Transforms/InstCombine/addrspacecast.ll
+++ b/test/Transforms/InstCombine/addrspacecast.ll
@@ -2,6 +2,12 @@
target datalayout = "e-p:64:64:64-p1:32:32:32-p2:16:16:16-n8:16:32:64"
+
+declare void @llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1) nounwind
+declare void @llvm.memcpy.p0i8.p1i8.i32(i8*, i8 addrspace(1)*, i32, i32, i1) nounwind
+declare void @llvm.memcpy.p0i8.p2i8.i32(i8*, i8 addrspace(2)*, i32, i32, i1) nounwind
+
+
define i32* @combine_redundant_addrspacecast(i32 addrspace(1)* %x) nounwind {
; CHECK-LABEL: @combine_redundant_addrspacecast(
; CHECK: addrspacecast i32 addrspace(1)* %x to i32*
@@ -29,3 +35,35 @@ define float* @combine_redundant_addrspacecast_types(i32 addrspace(1)* %x) nounw
ret float* %z
}
+@const_array = addrspace(2) constant [60 x i8] [i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22,
+ i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22,
+ i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22,
+ i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22,
+ i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22 ]
+
+declare void @foo(i8*) nounwind
+
+; A copy from a constant addrspacecast'ed global
+; CHECK-LABEL: @memcpy_addrspacecast(
+; CHECK-NOT: call void @llvm.memcpy
+define i32 @memcpy_addrspacecast() nounwind {
+entry:
+ %alloca = alloca i8, i32 48
+ call void @llvm.memcpy.p0i8.p1i8.i32(i8* %alloca, i8 addrspace(1)* addrspacecast (i8 addrspace(2)* getelementptr inbounds ([60 x i8] addrspace(2)* @const_array, i16 0, i16 4) to i8 addrspace(1)*), i32 48, i32 4, i1 false) nounwind
+ br label %loop.body
+
+loop.body:
+ %i = phi i32 [ 0, %entry ], [ %i.inc, %loop.body ]
+ %sum = phi i32 [ 0, %entry ], [ %sum.inc, %loop.body]
+ %ptr = getelementptr i8* %alloca, i32 %i
+ %load = load i8* %ptr
+ %ext = zext i8 %load to i32
+ %sum.inc = add i32 %sum, %ext
+ %i.inc = add i32 %i, 1
+ %cmp = icmp ne i32 %i, 48
+ br i1 %cmp, label %loop.body, label %end
+
+end:
+ ret i32 %sum.inc
+}
+