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llvm-mirror/test/Transforms/InstCombine/icmp-shl-nuw.ll
Eric Christopher a62270de2c Revert "Temporarily Revert "Add basic loop fusion pass.""
The reversion apparently deleted the test/Transforms directory.

Will be re-reverting again.

llvm-svn: 358552
2019-04-17 04:52:47 +00:00

93 lines
2.5 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt %s -instcombine -S | FileCheck %s
define i1 @icmp_ugt_32(i64) {
; CHECK-LABEL: @icmp_ugt_32(
; CHECK-NEXT: [[D:%.*]] = icmp ne i64 %0, 0
; CHECK-NEXT: ret i1 [[D]]
;
%c = shl nuw i64 %0, 32
%d = icmp ugt i64 %c, 4294967295
ret i1 %d
}
define i1 @icmp_ule_64(i128) {
; CHECK-LABEL: @icmp_ule_64(
; CHECK-NEXT: [[D:%.*]] = icmp eq i128 %0, 0
; CHECK-NEXT: ret i1 [[D]]
;
%c = shl nuw i128 %0, 64
%d = icmp ule i128 %c, 18446744073709551615
ret i1 %d
}
define i1 @icmp_ugt_16(i64) {
; CHECK-LABEL: @icmp_ugt_16(
; CHECK-NEXT: [[D:%.*]] = icmp ugt i64 %0, 15
; CHECK-NEXT: ret i1 [[D]]
;
%c = shl nuw i64 %0, 16
%d = icmp ugt i64 %c, 1048575 ; 0x0f_ffff
ret i1 %d
}
define <2 x i1> @icmp_ule_16x2(<2 x i64>) {
; CHECK-LABEL: @icmp_ule_16x2(
; CHECK-NEXT: [[D:%.*]] = icmp eq <2 x i64> %0, zeroinitializer
; CHECK-NEXT: ret <2 x i1> [[D]]
;
%c = shl nuw <2 x i64> %0, <i64 16, i64 16>
%d = icmp ule <2 x i64> %c, <i64 65535, i64 65535>
ret <2 x i1> %d
}
define <2 x i1> @icmp_ule_16x2_nonzero(<2 x i64>) {
; CHECK-LABEL: @icmp_ule_16x2_nonzero(
; CHECK-NEXT: [[D:%.*]] = icmp ult <2 x i64> %0, <i64 4, i64 4>
; CHECK-NEXT: ret <2 x i1> [[D]]
;
%c = shl nuw <2 x i64> %0, <i64 16, i64 16>
%d = icmp ule <2 x i64> %c, <i64 196608, i64 196608> ; 0x03_0000
ret <2 x i1> %d
}
define <2 x i1> @icmp_ule_12x2(<2 x i64>) {
; CHECK-LABEL: @icmp_ule_12x2(
; CHECK-NEXT: [[D:%.*]] = icmp ult <2 x i64> %0, <i64 4, i64 4>
; CHECK-NEXT: ret <2 x i1> [[D]]
;
%c = shl nuw <2 x i64> %0, <i64 12, i64 12>
%d = icmp ule <2 x i64> %c, <i64 12288, i64 12288> ; 0x3000
ret <2 x i1> %d
}
define i1 @icmp_ult_8(i64) {
; CHECK-LABEL: @icmp_ult_8(
; CHECK-NEXT: [[D:%.*]] = icmp ult i64 %0, 16
; CHECK-NEXT: ret i1 [[D]]
;
%c = shl nuw i64 %0, 8
%d = icmp ult i64 %c, 4095 ; 0x0fff
ret i1 %d
}
define <2 x i1> @icmp_uge_8x2(<2 x i16>) {
; CHECK-LABEL: @icmp_uge_8x2(
; CHECK-NEXT: [[D:%.*]] = icmp ugt <2 x i16> %0, <i16 15, i16 15>
; CHECK-NEXT: ret <2 x i1> [[D]]
;
%c = shl nuw <2 x i16> %0, <i16 8, i16 8>
%d = icmp uge <2 x i16> %c, <i16 4095, i16 4095>
ret <2 x i1> %d
}
define <2 x i1> @icmp_ugt_16x2(<2 x i32>) {
; CHECK-LABEL: @icmp_ugt_16x2(
; CHECK-NEXT: [[D:%.*]] = icmp ugt <2 x i32> %0, <i32 15, i32 15>
; CHECK-NEXT: ret <2 x i1> [[D]]
;
%c = shl nuw <2 x i32> %0, <i32 16, i32 16>
%d = icmp ugt <2 x i32> %c, <i32 1048575, i32 1048575>
ret <2 x i1> %d
}