derek.holloway
7502bf64a4
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129 lines
2.9 KiB
LLVM
129 lines
2.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=arm-eabi -mattr=+v6 %s -o - | FileCheck %s --check-prefixes=CHECK,CHECK-V6
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; RUN: llc -mtriple=arm-eabi -mattr=+v7 %s -o - | FileCheck %s --check-prefixes=CHECK,CHECK-V7
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define i32 @test0(i8 %A) {
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; CHECK-LABEL: test0:
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; CHECK: @ %bb.0:
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; CHECK-NEXT: sxtb r0, r0
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; CHECK-NEXT: bx lr
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%B = sext i8 %A to i32
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ret i32 %B
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}
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define signext i8 @test1(i32 %A) {
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; CHECK-V6-LABEL: test1:
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; CHECK-V6: @ %bb.0:
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; CHECK-V6-NEXT: lsr r0, r0, #8
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; CHECK-V6-NEXT: sxtb r0, r0
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; CHECK-V6-NEXT: bx lr
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;
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; CHECK-V7-LABEL: test1:
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; CHECK-V7: @ %bb.0:
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; CHECK-V7-NEXT: sbfx r0, r0, #8, #8
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; CHECK-V7-NEXT: bx lr
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%B = lshr i32 %A, 8
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%C = shl i32 %A, 24
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%D = or i32 %B, %C
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%E = trunc i32 %D to i8
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ret i8 %E
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}
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define signext i32 @test2(i32 %A, i32 %X) {
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; CHECK-LABEL: test2:
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; CHECK: @ %bb.0:
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; CHECK-NEXT: sxtab r0, r1, r0, ror #8
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; CHECK-NEXT: bx lr
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%B = lshr i32 %A, 8
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%C = shl i32 %A, 24
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%D = or i32 %B, %C
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%E = trunc i32 %D to i8
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%F = sext i8 %E to i32
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%G = add i32 %F, %X
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ret i32 %G
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}
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define signext i32 @test3(i32 %A, i32 %X) {
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; CHECK-LABEL: test3:
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; CHECK: @ %bb.0:
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; CHECK-NEXT: sxtab r0, r1, r0, ror #16
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; CHECK-NEXT: bx lr
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%B = lshr i32 %A, 16
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%C = shl i32 %A, 16
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%D = or i32 %B, %C
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%E = trunc i32 %D to i8
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%F = sext i8 %E to i32
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%G = add i32 %F, %X
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ret i32 %G
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}
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define signext i32 @test4(i32 %A, i32 %X) {
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; CHECK-LABEL: test4:
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; CHECK: @ %bb.0:
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; CHECK-NEXT: sxtah r0, r1, r0, ror #8
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; CHECK-NEXT: bx lr
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%B = lshr i32 %A, 8
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%C = shl i32 %A, 24
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%D = or i32 %B, %C
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%E = trunc i32 %D to i16
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%F = sext i16 %E to i32
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%G = add i32 %F, %X
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ret i32 %G
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}
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define signext i32 @test5(i32 %A, i32 %X) {
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; CHECK-LABEL: test5:
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; CHECK: @ %bb.0:
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; CHECK-NEXT: sxtah r0, r1, r0, ror #24
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; CHECK-NEXT: bx lr
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%B = lshr i32 %A, 24
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%C = shl i32 %A, 8
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%D = or i32 %B, %C
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%E = trunc i32 %D to i16
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%F = sext i16 %E to i32
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%G = add i32 %F, %X
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ret i32 %G
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}
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define i32 @test6(i8 %A, i32 %X) {
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; CHECK-LABEL: test6:
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; CHECK: @ %bb.0:
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; CHECK-NEXT: sxtab r0, r1, r0
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; CHECK-NEXT: bx lr
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%sext = sext i8 %A to i32
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%add = add i32 %X, %sext
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ret i32 %add
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}
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define i32 @test7(i32 %A, i32 %X) {
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; CHECK-LABEL: test7:
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; CHECK: @ %bb.0:
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; CHECK-NEXT: sxtab r0, r1, r0
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; CHECK-NEXT: bx lr
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%shl = shl i32 %A, 24
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%shr = ashr i32 %shl, 24
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%add = add i32 %X, %shr
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ret i32 %add
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}
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define i32 @test8(i16 %A, i32 %X) {
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; CHECK-LABEL: test8:
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; CHECK: @ %bb.0:
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; CHECK-NEXT: sxtah r0, r1, r0
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; CHECK-NEXT: bx lr
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%sext = sext i16 %A to i32
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%add = add i32 %X, %sext
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ret i32 %add
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}
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define i32 @test9(i32 %A, i32 %X) {
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; CHECK-LABEL: test9:
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; CHECK: @ %bb.0:
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; CHECK-NEXT: sxtah r0, r1, r0
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; CHECK-NEXT: bx lr
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%shl = shl i32 %A, 16
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%shr = ashr i32 %shl, 16
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%add = add i32 %X, %shr
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ret i32 %add
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}
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