36 lines
1.0 KiB
LLVM
36 lines
1.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
; RUN: opt < %s -instcombine -S | FileCheck %s
|
|
|
|
; This test makes sure that mul instructions are properly eliminated.
|
|
; This test is for Integer BitWidth >= 64 && BitWidth % 2 >= 1024.
|
|
|
|
define i177 @test1(i177 %X) {
|
|
; CHECK-LABEL: @test1(
|
|
; CHECK-NEXT: [[Y:%.*]] = shl i177 [[X:%.*]], 155
|
|
; CHECK-NEXT: ret i177 [[Y]]
|
|
;
|
|
%C = shl i177 1, 155
|
|
%Y = mul i177 %X, %C
|
|
ret i177 %Y
|
|
}
|
|
|
|
define <2 x i177> @test2(<2 x i177> %X) {
|
|
; CHECK-LABEL: @test2(
|
|
; CHECK-NEXT: [[Y:%.*]] = shl <2 x i177> [[X:%.*]], <i177 155, i177 155>
|
|
; CHECK-NEXT: ret <2 x i177> [[Y]]
|
|
;
|
|
%C = shl <2 x i177> <i177 1, i177 1>, <i177 155, i177 155>
|
|
%Y = mul <2 x i177> %X, %C
|
|
ret <2 x i177> %Y
|
|
}
|
|
|
|
define <2 x i177> @test3(<2 x i177> %X) {
|
|
; CHECK-LABEL: @test3(
|
|
; CHECK-NEXT: [[Y:%.*]] = shl <2 x i177> [[X:%.*]], <i177 150, i177 155>
|
|
; CHECK-NEXT: ret <2 x i177> [[Y]]
|
|
;
|
|
%C = shl <2 x i177> <i177 1, i177 1>, <i177 150, i177 155>
|
|
%Y = mul <2 x i177> %X, %C
|
|
ret <2 x i177> %Y
|
|
}
|