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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -instcombine < %s | FileCheck %s
@g = external global i32
define i1 @test(i32 %other) {
; CHECK-LABEL: @test(
; CHECK-NEXT: [[TEST:%.*]] = icmp sgt i32 %other, 0
; CHECK-NEXT: ret i1 [[TEST]]
;
%positive = load i32, i32* @g, !range !{i32 1, i32 2048}
%cmp = icmp slt i32 %positive, %other
%sel = select i1 %cmp, i32 %positive, i32 %other
%test = icmp sgt i32 %sel, 0
ret i1 %test
}
define i1 @test2(i32 %other) {
; CHECK-LABEL: @test2(
; CHECK-NEXT: [[TEST:%.*]] = icmp sgt i32 %other, 0
; CHECK-NEXT: ret i1 [[TEST]]
;
%positive = load i32, i32* @g, !range !{i32 1, i32 2048}
%cmp = icmp slt i32 %other, %positive
%sel = select i1 %cmp, i32 %other, i32 %positive
%test = icmp sgt i32 %sel, 0
ret i1 %test
}
; %positive might be zero
define i1 @test3(i32 %other) {
; CHECK-LABEL: @test3(
; CHECK-NEXT: [[POSITIVE:%.*]] = load i32, i32* @g, align 4, !range !0
; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[POSITIVE]], %other
; CHECK-NEXT: [[SEL:%.*]] = select i1 [[CMP]], i32 [[POSITIVE]], i32 %other
; CHECK-NEXT: [[TEST:%.*]] = icmp sgt i32 [[SEL]], 0
; CHECK-NEXT: ret i1 [[TEST]]
;
%positive = load i32, i32* @g, !range !{i32 0, i32 2048}
%cmp = icmp slt i32 %positive, %other
%sel = select i1 %cmp, i32 %positive, i32 %other
%test = icmp sgt i32 %sel, 0
ret i1 %test
}
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