File: shr-scalar-vector-consistency.ll

package info (click to toggle)
llvm-toolchain-16 1%3A16.0.6-15~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,634,792 kB
  • sloc: cpp: 6,179,261; ansic: 1,216,205; asm: 741,319; python: 196,614; objc: 75,325; f90: 49,640; lisp: 32,396; pascal: 12,286; sh: 9,394; perl: 7,442; ml: 5,494; awk: 3,523; makefile: 2,723; javascript: 1,206; xml: 886; fortran: 581; cs: 573
file content (25 lines) | stat: -rw-r--r-- 706 bytes parent folder | download | duplicates (13)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=instsimplify -S | FileCheck %s

; This tests checks optimization consistency for scalar and vector code.
; If m_Zero() is able to match a vector undef, but not a scalar undef,
; the two cases will simplify differently.

define i32 @test_scalar(i32 %a, i1 %b) {
; CHECK-LABEL: @test_scalar(
; CHECK-NEXT:    ret i32 undef
;
  %c = sext i1 %b to i32
  %d = ashr i32 undef, %c
  ret i32 %d
}

define <2 x i32> @test_vector(<2 x i32> %a, <2 x i1> %b) {
; CHECK-LABEL: @test_vector(
; CHECK-NEXT:    ret <2 x i32> undef
;
  %c = sext <2 x i1> %b to <2 x i32>
  %d = ashr <2 x i32> undef, %c
  ret <2 x i32> %d
}