| ; 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( |
| %constexpr = select i1 icmp eq (ptr @a, ptr @d), 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( |
| %constexpr = select i1 icmp eq (ptr @a, ptr @d), i32 0, i32 1 |
| %constexpr1 = trunc i32 %constexpr to i16 |
| %constexpr2 = icmp sgt i16 %constexpr1, 42 |
| ret i1 %constexpr2 |
| ; CHECK: ret i1 false |
| } |
