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TheRock/compiler/amd-llvm/llvm/test/Transforms/InstCombine/2010-03-03-ExtElim.ll
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

42 lines
1.4 KiB
LLVM

; RUN: opt -passes=instcombine -S < %s | FileCheck %s
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"
target triple = "i386-unknown-linux-gnu"
@g_92 = common global [2 x ptr] zeroinitializer, align 4 ; <ptr> [#uses=1]
@g_177 = constant ptr getelementptr (i8, ptr @g_92, i64 4), align 4 ; <ptr> [#uses=1]
define i1 @PR6486() nounwind {
; CHECK-LABEL: @PR6486(
%tmp = load ptr, ptr @g_177 ; <ptr> [#uses=1]
%cmp = icmp ne ptr null, %tmp ; <i1> [#uses=1]
%conv = zext i1 %cmp to i32 ; <i32> [#uses=1]
%cmp1 = icmp sle i32 0, %conv ; <i1> [#uses=1]
ret i1 %cmp1
; CHECK: ret i1 true
}
@d = global i32 0, align 4
@a = global [1 x i32] zeroinitializer, align 4
define i1 @PR16462_1() nounwind {
; CHECK-LABEL: @PR16462_1(
%cmp = icmp eq ptr @a, @d
%constexpr = select i1 %cmp, i32 0, i32 1
%constexpr1 = trunc i32 %constexpr to i16
%constexpr2 = sext i16 %constexpr1 to i32
%constexpr3 = icmp sgt i32 %constexpr2, 65535
ret i1 %constexpr3
; CHECK: ret i1 false
}
define i1 @PR16462_2() nounwind {
; CHECK-LABEL: @PR16462_2(
%cmp = icmp eq ptr @a, @d
%constexpr = select i1 %cmp, i32 0, i32 1
%constexpr1 = trunc i32 %constexpr to i16
%constexpr2 = icmp sgt i16 %constexpr1, 42
ret i1 %constexpr2
; CHECK: ret i1 false
}