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; RUN: llc < %s -mtriple=arm64 | FileCheck %s define i1 @testSwapCmpWithLSL64_1(i64 %a, i64 %b) { ; CHECK-LABEL: testSwapCmpWithLSL64_1: ; CHECK: cmp x1, x0, lsl #1 ; CHECK-NEXT: cset w0, gt entry: %shl = shl i64 %a, 1 %cmp = icmp slt i64 %shl, %b ret i1 %cmp } define i1 @testSwapCmpWithLSL64_63(i64 %a, i64 %b) { ; CHECK-LABEL: testSwapCmpWithLSL64_63: ; CHECK: cmp x1, x0, lsl #63 ; CHECK-NEXT: cset w0, gt entry: %shl = shl i64 %a, 63 %cmp = icmp slt i64 %shl, %b ret i1 %cmp } define i1 @testSwapCmpWithLSL32_1(i32 %a, i32 %b) { ; CHECK-LABEL: testSwapCmpWithLSL32_1: ; CHECK: cmp w1, w0, lsl #1 ; CHECK-NEXT: cset w0, gt entry: %shl = shl i32 %a, 1 %cmp = icmp slt i32 %shl, %b ret i1 %cmp } define i1 @testSwapCmpWithLSL32_31(i32 %a, i32 %b) { ; CHECK-LABEL: testSwapCmpWithLSL32_31: ; CHECK: cmp w1, w0, lsl #31 ; CHECK-NEXT: cset w0, gt entry: %shl = shl i32 %a, 31 %cmp = icmp slt i32 %shl, %b ret i1 %cmp } define i1 @testSwapCmpWithLSR64_1(i64 %a, i64 %b) { ; CHECK-LABEL: testSwapCmpWithLSR64_1: ; CHECK: cmp x1, x0, lsr #1 ; CHECK-NEXT: cset w0, gt entry: %lshr = lshr i64 %a, 1 %cmp = icmp slt i64 %lshr, %b ret i1 %cmp } define i1 @testSwapCmpWithLSR64_63(i64 %a, i64 %b) { ; CHECK-LABEL: testSwapCmpWithLSR64_63: ; CHECK: cmp x1, x0, lsr #63 ; CHECK-NEXT: cset w0, gt entry: %lshr = lshr i64 %a, 63 %cmp = icmp slt i64 %lshr, %b ret i1 %cmp } define i1 @testSwapCmpWithLSR32_1(i32 %a, i32 %b) { ; CHECK-LABEL: testSwapCmpWithLSR32_1: ; CHECK: cmp w1, w0, lsr #1 ; CHECK-NEXT: cset w0, gt entry: %lshr = lshr i32 %a, 1 %cmp = icmp slt i32 %lshr, %b ret i1 %cmp } define i1 @testSwapCmpWithLSR32_31(i32 %a, i32 %b) { ; CHECK-LABEL: testSwapCmpWithLSR32_31: ; CHECK: cmp w1, w0, lsr #31 ; CHECK-NEXT: cset w0, gt entry: %lshr = lshr i32 %a, 31 %cmp = icmp slt i32 %lshr, %b ret i1 %cmp } define i1 @testSwapCmpWithASR64_1(i64 %a, i64 %b) { ; CHECK-LABEL: testSwapCmpWithASR64_1: ; CHECK: cmp x1, x0, asr #1 ; CHECK-NEXT: cset w0, gt entry: %ashr = ashr i64 %a, 1 %cmp = icmp slt i64 %ashr, %b ret i1 %cmp } define i1 @testSwapCmpWithASR64_63(i64 %a, i64 %b) { ; CHECK-LABEL: testSwapCmpWithASR64_63: ; CHECK: cmp x1, x0, asr #63 ; CHECK-NEXT: cset w0, gt entry: %ashr = ashr i64 %a, 63 %cmp = icmp slt i64 %ashr, %b ret i1 %cmp } define i1 @testSwapCmpWithASR32_1(i32 %a, i32 %b) { ; CHECK-LABEL: testSwapCmpWithASR32_1: ; CHECK: cmp w1, w0, asr #1 ; CHECK-NEXT: cset w0, gt entry: %ashr = ashr i32 %a, 1 %cmp = icmp slt i32 %ashr, %b ret i1 %cmp } define i1 @testSwapCmpWithASR32_31(i32 %a, i32 %b) { ; CHECK-LABEL: testSwapCmpWithASR32_31: ; CHECK: cmp w1, w0, asr #31 ; CHECK-NEXT: cset w0, gt entry: %ashr = ashr i32 %a, 31 %cmp = icmp slt i32 %ashr, %b ret i1 %cmp } define i1 @testSwapCmpWithShiftedZeroExtend32_64(i32 %a, i64 %b) { ; CHECK-LABEL: testSwapCmpWithShiftedZeroExtend32_64 ; CHECK: cmp x1, w0, uxtw #2 ; CHECK-NEXT: cset w0, lo entry: %a64 = zext i32 %a to i64 %shl.0 = shl i64 %a64, 2 %cmp = icmp ugt i64 %shl.0, %b ret i1 %cmp } define i1 @testSwapCmpWithShiftedZeroExtend16_64(i16 %a, i64 %b) { ; CHECK-LABEL: testSwapCmpWithShiftedZeroExtend16_64 ; CHECK: cmp x1, w0, uxth #2 ; CHECK-NEXT: cset w0, lo entry: %a64 = zext i16 %a to i64 %shl.0 = shl i64 %a64, 2 %cmp = icmp ugt i64 %shl.0, %b ret i1 %cmp } define i1 @testSwapCmpWithShiftedZeroExtend8_64(i8 %a, i64 %b) { ; CHECK-LABEL: testSwapCmpWithShiftedZeroExtend8_64 ; CHECK: cmp x1, w0, uxtb #4 ; CHECK-NEXT: cset w0, lo entry: %a64 = zext i8 %a to i64 %shl.2 = shl i64 %a64, 4 %cmp = icmp ugt i64 %shl.2, %b ret i1 %cmp } define i1 @testSwapCmpWithShiftedZeroExtend16_32(i16 %a, i32 %b) { ; CHECK-LABEL: testSwapCmpWithShiftedZeroExtend16_32 ; CHECK: cmp w1, w0, uxth #3 ; CHECK-NEXT: cset w0, lo entry: %a32 = zext i16 %a to i32 %shl = shl i32 %a32, 3 %cmp = icmp ugt i32 %shl, %b ret i1 %cmp } define i1 @testSwapCmpWithShiftedZeroExtend8_32(i8 %a, i32 %b) { ; CHECK-LABEL: testSwapCmpWithShiftedZeroExtend8_32 ; CHECK: cmp w1, w0, uxtb #4 ; CHECK-NEXT: cset w0, lo entry: %a32 = zext i8 %a to i32 %shl = shl i32 %a32, 4 %cmp = icmp ugt i32 %shl, %b ret i1 %cmp } define i1 @testSwapCmpWithTooLargeShiftedZeroExtend8_32(i8 %a, i32 %b) { ; CHECK-LABEL: testSwapCmpWithTooLargeShiftedZeroExtend8_32 ; CHECK: and [[REG:w[0-9]+]], w0, #0xff ; CHECK: cmp w1, [[REG]], lsl #5 ; CHECK-NEXT: cset w0, lo entry: %a32 = zext i8 %a to i32 %shl = shl i32 %a32, 5 %cmp = icmp ugt i32 %shl, %b ret i1 %cmp } define i1 @testSwapCmpWithZeroExtend8_32(i8 %a, i32 %b) { ; CHECK-LABEL: testSwapCmpWithZeroExtend8_32 ; CHECK: cmp w1, w0, uxtb ; CHECK-NEXT: cset w0, lo entry: %a32 = zext i8 %a to i32 %cmp = icmp ugt i32 %a32, %b ret i1 %cmp } define i1 @testSwapCmpWithShiftedSignExtend32_64(i32 %a, i64 %b) { ; CHECK-LABEL: testSwapCmpWithShiftedSignExtend32_64 ; CHECK: cmp x1, w0, sxtw #2 ; CHECK-NEXT: cset w0, lo entry: %a64 = sext i32 %a to i64 %shl.0 = shl i64 %a64, 2 %cmp = icmp ugt i64 %shl.0, %b ret i1 %cmp } define i1 @testSwapCmpWithShiftedSignExtend16_64(i16 %a, i64 %b) { ; CHECK-LABEL: testSwapCmpWithShiftedSignExtend16_64 ; CHECK: cmp x1, w0, sxth #2 ; CHECK-NEXT: cset w0, lo entry: %a64 = sext i16 %a to i64 %shl.0 = shl i64 %a64, 2 %cmp = icmp ugt i64 %shl.0, %b ret i1 %cmp } define i1 @testSwapCmpWithShiftedSignExtend8_64(i8 %a, i64 %b) { ; CHECK-LABEL: testSwapCmpWithShiftedSignExtend8_64 ; CHECK: cmp x1, w0, sxtb #4 ; CHECK-NEXT: cset w0, lo entry: %a64 = sext i8 %a to i64 %shl.2 = shl i64 %a64, 4 %cmp = icmp ugt i64 %shl.2, %b ret i1 %cmp } define i1 @testSwapCmpWithShiftedSignExtend16_32(i16 %a, i32 %b) { ; CHECK-LABEL: testSwapCmpWithShiftedSignExtend16_32 ; CHECK: cmp w1, w0, sxth #3 ; CHECK-NEXT: cset w0, lo entry: %a32 = sext i16 %a to i32 %shl = shl i32 %a32, 3 %cmp = icmp ugt i32 %shl, %b ret i1 %cmp } define i1 @testSwapCmpWithShiftedSignExtend8_32(i8 %a, i32 %b) { ; CHECK-LABEL: testSwapCmpWithShiftedSignExtend8_32 ; CHECK: cmp w1, w0, sxtb #4 ; CHECK-NEXT: cset w0, lo entry: %a32 = sext i8 %a to i32 %shl = shl i32 %a32, 4 %cmp = icmp ugt i32 %shl, %b ret i1 %cmp } define i1 @testSwapCmpWithTooLargeShiftedSignExtend8_32(i8 %a, i32 %b) { ; CHECK-LABEL: testSwapCmpWithTooLargeShiftedSignExtend8_32 ; CHECK: sxtb [[REG:w[0-9]+]], w0 ; CHECK-NEXT: cmp w1, [[REG]], lsl #5 ; CHECK-NEXT: cset w0, lo entry: %a32 = sext i8 %a to i32 %shl = shl i32 %a32, 5 %cmp = icmp ugt i32 %shl, %b ret i1 %cmp } define i1 @testSwapCmpWithSignExtend8_32(i8 %a, i32 %b) { ; CHECK-LABEL: testSwapCmpWithSignExtend8_32 ; CHECK: cmp w1, w0, sxtb ; CHECK-NEXT: cset w0, lo entry: %a32 = sext i8 %a to i32 %cmp = icmp ugt i32 %a32, %b ret i1 %cmp } define i1 @testSwapCmnWithLSL64_1(i64 %a, i64 %b) { ; CHECK-LABEL: testSwapCmnWithLSL64_1: ; CHECK: cmn x1, x0, lsl #1 ; CHECK-NEXT: cset w0, ne entry: %shl = shl i64 %a, 1 %na = sub i64 0, %shl %cmp = icmp ne i64 %na, %b ret i1 %cmp } ; Note: testing with a 62 bits shift as 63 has another optimization kicking in. define i1 @testSwapCmnWithLSL64_62(i64 %a, i64 %b) { ; CHECK-LABEL: testSwapCmnWithLSL64_62: ; CHECK: cmn x1, x0, lsl #62 ; CHECK-NEXT: cset w0, ne entry: %shl = shl i64 %a, 62 %na = sub i64 0, %shl %cmp = icmp ne i64 %na, %b ret i1 %cmp } ; Note: the 63 bits shift triggers a different optimization path, which leads ; to a similar result in terms of performances. We try to catch here any change ; so that this test can be adapted should the optimization be done with the ; operand swap. define i1 @testSwapCmnWithLSL64_63(i64 %a, i64 %b) { ; CHECK-LABEL: testSwapCmnWithLSL64_63: ; CHECK: cmp x1, x0, lsl #63 ; CHECK-NEXT: cset w0, ne entry: %shl = shl i64 %a, 63 %na = sub i64 0, %shl %cmp = icmp ne i64 %na, %b ret i1 %cmp } define i1 @testSwapCmnWithLSL32_1(i32 %a, i32 %b) { ; CHECK-LABEL: testSwapCmnWithLSL32_1: ; CHECK: cmn w1, w0, lsl #1 ; CHECK-NEXT: cset w0, ne entry: %shl = shl i32 %a, 1 %na = sub i32 0, %shl %cmp = icmp ne i32 %na, %b ret i1 %cmp } ; Note: testing with a 30 bits shift as 30 has another optimization kicking in. define i1 @testSwapCmnWithLSL32_30(i32 %a, i32 %b) { ; CHECK-LABEL: testSwapCmnWithLSL32_30: ; CHECK: cmn w1, w0, lsl #30 ; CHECK-NEXT: cset w0, ne entry: %shl = shl i32 %a, 30 %na = sub i32 0, %shl %cmp = icmp ne i32 %na, %b ret i1 %cmp } ; Note: the 31 bits shift triggers a different optimization path, which leads ; to a similar result in terms of performances. We try to catch here any change ; so that this test can be adapted should the optimization be done with the ; operand swap. define i1 @testSwapCmnWithLSL32_31(i32 %a, i32 %b) { ; CHECK-LABEL: testSwapCmnWithLSL32_31: ; CHECK: cmp w1, w0, lsl #31 ; CHECK-NEXT: cset w0, ne entry: %shl = shl i32 %a, 31 %na = sub i32 0, %shl %cmp = icmp ne i32 %na, %b ret i1 %cmp } define i1 @testSwapCmnWithLSR64_1(i64 %a, i64 %b) { ; CHECK-LABEL: testSwapCmnWithLSR64_1: ; CHECK: cmn x1, x0, lsr #1 ; CHECK-NEXT: cset w0, ne entry: %lshr = lshr i64 %a, 1 %na = sub i64 0, %lshr %cmp = icmp ne i64 %na, %b ret i1 %cmp } ; Note: testing with a 62 bits shift as 63 has another optimization kicking in. define i1 @testSwapCmnWithLSR64_62(i64 %a, i64 %b) { ; CHECK-LABEL: testSwapCmnWithLSR64_62: ; CHECK: cmn x1, x0, lsr #62 ; CHECK-NEXT: cset w0, ne entry: %lshr = lshr i64 %a, 62 %na = sub i64 0, %lshr %cmp = icmp ne i64 %na, %b ret i1 %cmp } ; Note: the 63 bits shift triggers a different optimization path, which leads ; to a similar result in terms of performances. We try to catch here any change ; so that this test can be adapted should the optimization be done with the ; operand swap. define i1 @testSwapCmnWithLSR64_63(i64 %a, i64 %b) { ; CHECK-LABEL: testSwapCmnWithLSR64_63: ; CHECK: cmp x1, x0, asr #63 ; CHECK-NEXT: cset w0, ne entry: %lshr = lshr i64 %a, 63 %na = sub i64 0, %lshr %cmp = icmp ne i64 %na, %b ret i1 %cmp } define i1 @testSwapCmnWithLSR32_1(i32 %a, i32 %b) { ; CHECK-LABEL: testSwapCmnWithLSR32_1: ; CHECK: cmn w1, w0, lsr #1 ; CHECK-NEXT: cset w0, ne entry: %lshr = lshr i32 %a, 1 %na = sub i32 0, %lshr %cmp = icmp ne i32 %na, %b ret i1 %cmp } ; Note: testing with a 30 bits shift as 31 has another optimization kicking in. define i1 @testSwapCmnWithLSR32_30(i32 %a, i32 %b) { ; CHECK-LABEL: testSwapCmnWithLSR32_30: ; CHECK: cmn w1, w0, lsr #30 ; CHECK-NEXT: cset w0, ne entry: %lshr = lshr i32 %a, 30 %na = sub i32 0, %lshr %cmp = icmp ne i32 %na, %b ret i1 %cmp } ; Note: the 31 bits shift triggers a different optimization path, which leads ; to a similar result in terms of performances. We try to catch here any change ; so that this test can be adapted should the optimization be done with the ; operand swap. define i1 @testSwapCmnWithLSR32_31(i32 %a, i32 %b) { ; CHECK-LABEL: testSwapCmnWithLSR32_31: ; CHECK: cmp w1, w0, asr #31 ; CHECK-NEXT: cset w0, ne entry: %lshr = lshr i32 %a, 31 %na = sub i32 0, %lshr %cmp = icmp ne i32 %na, %b ret i1 %cmp } define i1 @testSwapCmnWithASR64_1(i64 %a, i64 %b) { ; CHECK-LABEL: testSwapCmnWithASR64_1: ; CHECK: cmn x1, x0, asr #3 ; CHECK-NEXT: cset w0, ne entry: %lshr = ashr i64 %a, 3 %na = sub i64 0, %lshr %cmp = icmp ne i64 %na, %b ret i1 %cmp } ; Note: testing with a 62 bits shift as 63 has another optimization kicking in. define i1 @testSwapCmnWithASR64_62(i64 %a, i64 %b) { ; CHECK-LABEL: testSwapCmnWithASR64_62: ; CHECK: cmn x1, x0, asr #62 ; CHECK-NEXT: cset w0, ne entry: %lshr = ashr i64 %a, 62 %na = sub i64 0, %lshr %cmp = icmp ne i64 %na, %b ret i1 %cmp } ; Note: the 63 bits shift triggers a different optimization path, which leads ; to a similar result in terms of performances. We try to catch here any change ; so that this test can be adapted should the optimization be done with the ; operand swap. define i1 @testSwapCmnWithASR64_63(i64 %a, i64 %b) { ; CHECK-LABEL: testSwapCmnWithASR64_63: ; CHECK: cmp x1, x0, lsr #63 ; CHECK-NEXT: cset w0, ne entry: %lshr = ashr i64 %a, 63 %na = sub i64 0, %lshr %cmp = icmp ne i64 %na, %b ret i1 %cmp } define i1 @testSwapCmnWithASR32_1(i32 %a, i32 %b) { ; CHECK-LABEL: testSwapCmnWithASR32_1: ; CHECK: cmn w1, w0, asr #1 ; CHECK-NEXT: cset w0, eq entry: %lshr = ashr i32 %a, 1 %na = sub i32 0, %lshr %cmp = icmp eq i32 %na, %b ret i1 %cmp } ; Note: testing with a 30 bits shift as 31 has another optimization kicking in. define i1 @testSwapCmnWithASR32_30(i32 %a, i32 %b) { ; CHECK-LABEL: testSwapCmnWithASR32_30: ; CHECK: cmn w1, w0, asr #30 ; CHECK-NEXT: cset w0, ne entry: %lshr = ashr i32 %a, 30 %na = sub i32 0, %lshr %cmp = icmp ne i32 %na, %b ret i1 %cmp } ; Note: the 31 bits shift triggers a different optimization path, which leads ; to a similar result in terms of performances. We try to catch here any change ; so that this test can be adapted should the optimization be done with the ; operand swap. define i1 @testSwapCmnWithASR32_31(i32 %a, i32 %b) { ; CHECK-LABEL: testSwapCmnWithASR32_31: ; CHECK: cmp w1, w0, lsr #31 ; CHECK-NEXT: cset w0, ne entry: %lshr = ashr i32 %a, 31 %na = sub i32 0, %lshr %cmp = icmp ne i32 %na, %b ret i1 %cmp } define i64 @testSwapCmpToCmnWithZeroExtend(i32 %a32, i16 %a16, i8 %a8, i64 %b64, i32 %b32) { ; CHECK-LABEL: testSwapCmpToCmnWithZeroExtend: t0: %conv0 = zext i32 %a32 to i64 %shl0 = shl i64 %conv0, 1 %na0 = sub i64 0, %shl0 %cmp0 = icmp ne i64 %na0, %b64 ; CHECK: cmn x3, w0, uxtw #1 br i1 %cmp0, label %t1, label %end t1: %conv1 = zext i16 %a16 to i64 %shl1 = shl i64 %conv1, 4 %na1 = sub i64 0, %shl1 %cmp1 = icmp ne i64 %na1, %b64 ; CHECK: cmn x3, w1, uxth #4 br i1 %cmp1, label %t2, label %end t2: %conv2 = zext i8 %a8 to i64 %shl2 = shl i64 %conv2, 3 %na2 = sub i64 0, %shl2 %cmp2 = icmp ne i64 %na2, %b64 ; CHECK: cmn x3, w2, uxtb #3 br i1 %cmp2, label %t3, label %end t3: %conv3 = zext i16 %a16 to i32 %shl3 = shl i32 %conv3, 2 %na3 = sub i32 0, %shl3 %cmp3 = icmp ne i32 %na3, %b32 ; CHECK: cmn w4, w1, uxth #2 br i1 %cmp3, label %t4, label %end t4: %conv4 = zext i8 %a8 to i32 %shl4 = shl i32 %conv4, 1 %na4 = sub i32 0, %shl4 %cmp4 = icmp ne i32 %na4, %b32 ; CHECK: cmn w4, w2, uxtb #1 br i1 %cmp4, label %t5, label %end t5: %conv5 = zext i8 %a8 to i32 %shl5 = shl i32 %conv5, 5 %na5 = sub i32 0, %shl5 %cmp5 = icmp ne i32 %na5, %b32 ; CHECK: and [[REG:w[0-9]+]], w2, #0xff ; CHECK: cmn w4, [[REG]], lsl #5 br i1 %cmp5, label %t6, label %end t6: %conv6 = zext i8 %a8 to i32 %na6 = sub i32 0, %conv6 %cmp6 = icmp ne i32 %na6, %b32 ; CHECK: cmn w4, w2, uxtb br i1 %cmp6, label %t7, label %end t7: ret i64 0 end: ret i64 1 } define i64 @testSwapCmpToCmnWithSignExtend(i32 %a32, i16 %a16, i8 %a8, i64 %b64, i32 %b32) { ; CHECK-LABEL: testSwapCmpToCmnWithSignExtend: t0: %conv0 = sext i32 %a32 to i64 %shl0 = shl i64 %conv0, 1 %na0 = sub i64 0, %shl0 %cmp0 = icmp ne i64 %na0, %b64 ; CHECK: cmn x3, w0, sxtw #1 br i1 %cmp0, label %t1, label %end t1: %conv1 = sext i16 %a16 to i64 %shl1 = shl i64 %conv1, 4 %na1 = sub i64 0, %shl1 %cmp1 = icmp ne i64 %na1, %b64 ; CHECK: cmn x3, w1, sxth #4 br i1 %cmp1, label %t2, label %end t2: %conv2 = sext i8 %a8 to i64 %shl2 = shl i64 %conv2, 3 %na2 = sub i64 0, %shl2 %cmp2 = icmp ne i64 %na2, %b64 ; CHECK: cmn x3, w2, sxtb #3 br i1 %cmp2, label %t3, label %end t3: %conv3 = sext i16 %a16 to i32 %shl3 = shl i32 %conv3, 2 %na3 = sub i32 0, %shl3 %cmp3 = icmp ne i32 %na3, %b32 ; CHECK: cmn w4, w1, sxth #2 br i1 %cmp3, label %t4, label %end t4: %conv4 = sext i8 %a8 to i32 %shl4 = shl i32 %conv4, 1 %na4 = sub i32 0, %shl4 %cmp4 = icmp ne i32 %na4, %b32 ; CHECK: cmn w4, w2, sxtb #1 br i1 %cmp4, label %t5, label %end t5: %conv5 = sext i8 %a8 to i32 %shl5 = shl i32 %conv5, 5 %na5 = sub i32 0, %shl5 %cmp5 = icmp ne i32 %na5, %b32 ; CHECK: sxtb [[REG:w[0-9]+]], w2 ; CHECK: cmn w4, [[REG]], lsl #5 br i1 %cmp5, label %t6, label %end t6: %conv6 = sext i8 %a8 to i32 %na6 = sub i32 0, %conv6 %cmp6 = icmp ne i32 %na6, %b32 ; CHECK: cmn w4, w2, sxtb br i1 %cmp6, label %t7, label %end t7: ret i64 0 end: ret i64 1 }
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