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103 lines
2.3 KiB
LLVM
103 lines
2.3 KiB
LLVM
; RUN: llc < %s -O0 -fast-isel-abort=1 -mtriple=armv7-apple-ios -verify-machineinstrs | FileCheck %s --check-prefix=v7
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; RUN: llc < %s -O0 -fast-isel-abort=1 -mtriple=armv7-linux-gnueabi -verify-machineinstrs | FileCheck %s --check-prefix=v7
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; RUN: llc < %s -O0 -fast-isel-abort=1 -mtriple=thumbv7-apple-ios -verify-machineinstrs | FileCheck %s --check-prefix=v7
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; Can't test pre-ARMv6 Thumb because ARM FastISel currently only supports
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; Thumb2. The ARMFastISel::ARMEmitIntExt code should work for Thumb by always
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; using two shifts.
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; Note that lsl, asr and lsr in Thumb are all encoded as 16-bit instructions
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; and therefore must set flags. {{s?}} below denotes this, instead of
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; duplicating tests.
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; zext
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define i8 @zext_1_8(i1 %a) nounwind ssp {
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; v7-LABEL: zext_1_8:
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; v7: and r0, r0, #1
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%r = zext i1 %a to i8
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ret i8 %r
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}
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define i16 @zext_1_16(i1 %a) nounwind ssp {
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; v7-LABEL: zext_1_16:
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; v7: and r0, r0, #1
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%r = zext i1 %a to i16
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ret i16 %r
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}
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define i32 @zext_1_32(i1 %a) nounwind ssp {
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; v7-LABEL: zext_1_32:
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; v7: and r0, r0, #1
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%r = zext i1 %a to i32
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ret i32 %r
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}
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define i16 @zext_8_16(i8 %a) nounwind ssp {
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; v7-LABEL: zext_8_16:
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; v7: and r0, r0, #255
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%r = zext i8 %a to i16
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ret i16 %r
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}
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define i32 @zext_8_32(i8 %a) nounwind ssp {
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; v7-LABEL: zext_8_32:
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; v7: and r0, r0, #255
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%r = zext i8 %a to i32
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ret i32 %r
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}
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define i32 @zext_16_32(i16 %a) nounwind ssp {
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; v7-LABEL: zext_16_32:
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; v7: uxth r0, r0
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%r = zext i16 %a to i32
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ret i32 %r
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}
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; sext
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define i8 @sext_1_8(i1 %a) nounwind ssp {
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; v7-LABEL: sext_1_8:
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; v7: lsl{{s?}} r0, r0, #31
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; v7: asr{{s?}} r0, r0, #31
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%r = sext i1 %a to i8
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ret i8 %r
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}
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define i16 @sext_1_16(i1 %a) nounwind ssp {
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; v7-LABEL: sext_1_16:
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; v7: lsl{{s?}} r0, r0, #31
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; v7: asr{{s?}} r0, r0, #31
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%r = sext i1 %a to i16
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ret i16 %r
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}
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define i32 @sext_1_32(i1 %a) nounwind ssp {
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; v7-LABEL: sext_1_32:
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; v7: lsl{{s?}} r0, r0, #31
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; v7: asr{{s?}} r0, r0, #31
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%r = sext i1 %a to i32
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ret i32 %r
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}
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define i16 @sext_8_16(i8 %a) nounwind ssp {
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; v7-LABEL: sext_8_16:
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; v7: sxtb r0, r0
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%r = sext i8 %a to i16
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ret i16 %r
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}
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define i32 @sext_8_32(i8 %a) nounwind ssp {
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; v7-LABEL: sext_8_32:
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; v7: sxtb r0, r0
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%r = sext i8 %a to i32
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ret i32 %r
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}
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define i32 @sext_16_32(i16 %a) nounwind ssp {
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; v7-LABEL: sext_16_32:
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; v7: sxth r0, r0
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%r = sext i16 %a to i32
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ret i32 %r
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}
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