llvm-for-llvmta/test/Transforms/SCCP/select.ll

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2022-04-25 10:02:23 +02:00
; RUN: opt < %s -sccp -S | FileCheck %s
define i32 @test1(i1 %C) {
; CHECK-LABEL: define i32 @test1(
; CHECK-NEXT: ret i32 0
;
%X = select i1 %C, i32 0, i32 0 ; <i32> [#uses=1]
ret i32 %X
}
define i32 @test2(i1 %C) {
; CHECK-LABEL: define i32 @test2(
; CHECK-NEXT: ret i32 0
;
%X = select i1 %C, i32 0, i32 undef ; <i32> [#uses=1]
ret i32 %X
}
define i1 @f2(i32 %x, i1 %cmp) {
; CHECK-LABEL: define i1 @f2(i32 %x, i1 %cmp) {
; CHECK-NEXT: %sel.1 = select i1 %cmp, i32 %x, i32 10
; CHECK-NEXT: %c.1 = icmp sgt i32 %sel.1, 300
; CHECK-NEXT: %c.2 = icmp sgt i32 %sel.1, 100
; CHECK-NEXT: %c.3 = icmp eq i32 %sel.1, 50
; CHECK-NEXT: %c.4 = icmp slt i32 %sel.1, 9
; CHECK-NEXT: %res.1 = add i1 %c.1, %c.2
; CHECK-NEXT: %res.2 = add i1 %res.1, %c.3
; CHECK-NEXT: %res.3 = add i1 %res.2, %c.4
; CHECK-NEXT: ret i1 %res.3
;
%sel.1 = select i1 %cmp, i32 %x, i32 10
%c.1 = icmp sgt i32 %sel.1, 300
%c.2 = icmp sgt i32 %sel.1, 100
%c.3 = icmp eq i32 %sel.1, 50
%c.4 = icmp slt i32 %sel.1, 9
%res.1 = add i1 %c.1, %c.2
%res.2 = add i1 %res.1, %c.3
%res.3 = add i1 %res.2, %c.4
ret i1 %res.3
}