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76735fbd2e
A GEP of a non-weak global variable will not be equivalent to another non-weak global variable or a GEP of such a variable. Differential Revision: http://reviews.llvm.org/D4238 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212360 91177308-0d34-0410-b5e6-96231b3b80d8
33 lines
1.4 KiB
LLVM
33 lines
1.4 KiB
LLVM
; RUN: opt -instcombine -S < %s | FileCheck %s
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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32-n8:16:32"
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target triple = "i386-unknown-linux-gnu"
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@g_92 = common global [2 x i32*] zeroinitializer, align 4 ; <[2 x i32*]*> [#uses=1]
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@g_177 = constant i32** bitcast (i8* getelementptr (i8* bitcast ([2 x i32*]* @g_92 to i8*), i64 4) to i32**), align 4 ; <i32***> [#uses=1]
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define i1 @PR6486() nounwind {
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; CHECK-LABEL: @PR6486(
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%tmp = load i32*** @g_177 ; <i32**> [#uses=1]
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%cmp = icmp ne i32** null, %tmp ; <i1> [#uses=1]
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%conv = zext i1 %cmp to i32 ; <i32> [#uses=1]
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%cmp1 = icmp sle i32 0, %conv ; <i1> [#uses=1]
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ret i1 %cmp1
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; CHECK: ret i1 true
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}
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@d = common global i32 0, align 4
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@a = common global [1 x i32] zeroinitializer, align 4
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define i1 @PR16462_1() nounwind {
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; CHECK-LABEL: @PR16462_1(
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ret i1 icmp sgt (i32 sext (i16 trunc (i32 select (i1 icmp eq (i32* getelementptr inbounds ([1 x i32]* @a, i32 0, i32 0), i32* @d), i32 0, i32 1) to i16) to i32), i32 65535)
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; CHECK: ret i1 false
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}
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define i1 @PR16462_2() nounwind {
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; CHECK-LABEL: @PR16462_2(
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ret i1 icmp sgt (i32 sext (i16 trunc (i32 select (i1 icmp eq (i32* getelementptr inbounds ([1 x i32]* @a, i32 0, i32 0), i32* @d), i32 0, i32 1) to i16) to i32), i32 42)
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; CHECK: ret i1 false
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}
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