ext.ll
3.47 KB
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=x86_64-linux-gnu -global-isel -verify-machineinstrs < %s -o - | FileCheck %s --check-prefix=X64
; RUN: llc -mtriple=i386-linux-gnu -global-isel -verify-machineinstrs < %s -o - | FileCheck %s --check-prefix=X32
define i8 @test_zext_i1toi8(i32 %a) {
; X64-LABEL: test_zext_i1toi8:
; X64: # %bb.0:
; X64-NEXT: movl %edi, %eax
; X64-NEXT: andb $1, %al
; X64-NEXT: # kill: def $al killed $al killed $eax
; X64-NEXT: retq
;
; X32-LABEL: test_zext_i1toi8:
; X32: # %bb.0:
; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
; X32-NEXT: andb $1, %al
; X32-NEXT: # kill: def $al killed $al killed $eax
; X32-NEXT: retl
%val = trunc i32 %a to i1
%r = zext i1 %val to i8
ret i8 %r
}
define i16 @test_zext_i1toi16(i32 %a) {
; X64-LABEL: test_zext_i1toi16:
; X64: # %bb.0:
; X64-NEXT: movl %edi, %eax
; X64-NEXT: andw $1, %ax
; X64-NEXT: # kill: def $ax killed $ax killed $eax
; X64-NEXT: retq
;
; X32-LABEL: test_zext_i1toi16:
; X32: # %bb.0:
; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
; X32-NEXT: andw $1, %ax
; X32-NEXT: # kill: def $ax killed $ax killed $eax
; X32-NEXT: retl
%val = trunc i32 %a to i1
%r = zext i1 %val to i16
ret i16 %r
}
define i32 @test_zext_i1(i32 %a) {
; X64-LABEL: test_zext_i1:
; X64: # %bb.0:
; X64-NEXT: movl %edi, %eax
; X64-NEXT: andl $1, %eax
; X64-NEXT: retq
;
; X32-LABEL: test_zext_i1:
; X32: # %bb.0:
; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
; X32-NEXT: andl $1, %eax
; X32-NEXT: retl
%val = trunc i32 %a to i1
%r = zext i1 %val to i32
ret i32 %r
}
define i32 @test_zext_i8(i8 %val) {
; X64-LABEL: test_zext_i8:
; X64: # %bb.0:
; X64-NEXT: movzbl %dil, %eax
; X64-NEXT: retq
;
; X32-LABEL: test_zext_i8:
; X32: # %bb.0:
; X32-NEXT: movzbl {{[0-9]+}}(%esp), %eax
; X32-NEXT: retl
%r = zext i8 %val to i32
ret i32 %r
}
define i32 @test_zext_i16(i16 %val) {
; X64-LABEL: test_zext_i16:
; X64: # %bb.0:
; X64-NEXT: movzwl %di, %eax
; X64-NEXT: retq
;
; X32-LABEL: test_zext_i16:
; X32: # %bb.0:
; X32-NEXT: movzwl {{[0-9]+}}(%esp), %eax
; X32-NEXT: retl
%r = zext i16 %val to i32
ret i32 %r
}
define i32 @test_sext_i8(i8 %val) {
; X64-LABEL: test_sext_i8:
; X64: # %bb.0:
; X64-NEXT: movl %edi, %eax
; X64-NEXT: shll $24, %eax
; X64-NEXT: sarl $24, %eax
; X64-NEXT: retq
;
; X32-LABEL: test_sext_i8:
; X32: # %bb.0:
; X32-NEXT: movsbl {{[0-9]+}}(%esp), %eax
; X32-NEXT: retl
%r = sext i8 %val to i32
ret i32 %r
}
define i32 @test_sext_i16(i16 %val) {
; X64-LABEL: test_sext_i16:
; X64: # %bb.0:
; X64-NEXT: movl %edi, %eax
; X64-NEXT: shll $16, %eax
; X64-NEXT: sarl $16, %eax
; X64-NEXT: retq
;
; X32-LABEL: test_sext_i16:
; X32: # %bb.0:
; X32-NEXT: movswl {{[0-9]+}}(%esp), %eax
; X32-NEXT: retl
%r = sext i16 %val to i32
ret i32 %r
}
define i16 @test_zext_i8_to_i16(i8 %x, i8 %y) {
; X64-LABEL: test_zext_i8_to_i16:
; X64: # %bb.0:
; X64-NEXT: addb %dil, %sil
; X64-NEXT: movzbl %sil, %eax
; X64-NEXT: # kill: def $ax killed $ax killed $eax
; X64-NEXT: retq
;
; X32-LABEL: test_zext_i8_to_i16:
; X32: # %bb.0:
; X32-NEXT: movb {{[0-9]+}}(%esp), %al
; X32-NEXT: addb {{[0-9]+}}(%esp), %al
; X32-NEXT: movzbl %al, %eax
; X32-NEXT: # kill: def $ax killed $ax killed $eax
; X32-NEXT: retl
%a = add i8 %x, %y
%b = zext i8 %a to i16
ret i16 %b
}