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; RUN: llc -march=hexagon -mcpu=hexagonv4 -O3 < %s | FileCheck %s
; Check that the combine/stxw instructions are being generated.
; In case of combine one of the operand should be 0 and another should be
; the output of absolute addressing load instruction.
@a = external global i16
@b = external global i16
@c = external global i16
@char_a = external global i8
@char_b = external global i8
@char_c = external global i8
@int_a = external global i32
@int_b = external global i32
@int_c = external global i32
; Function Attrs: nounwind
define i64 @short_test1() #0 {
; CHECK: [[VAR:r[0-9]+]]{{ *}}={{ *}}memuh(##
; CHECK: combine(#0, [[VAR]])
entry:
store i16 0, i16* @a, align 2
%0 = load i16* @b, align 2
%conv2 = zext i16 %0 to i64
ret i64 %conv2
}
; Function Attrs: nounwind
define i64 @short_test2() #0 {
; CHECK: [[VAR1:r[0-9]+]]{{ *}}={{ *}}memh(##
; CHECK: sxtw([[VAR1]])
entry:
store i16 0, i16* @a, align 2
%0 = load i16* @c, align 2
%conv2 = sext i16 %0 to i64
ret i64 %conv2
}
; Function Attrs: nounwind
define i64 @char_test1() #0 {
; CHECK: [[VAR2:r[0-9]+]]{{ *}}={{ *}}memub(##
; CHECK: combine(#0, [[VAR2]])
entry:
store i8 0, i8* @char_a, align 1
%0 = load i8* @char_b, align 1
%conv2 = zext i8 %0 to i64
ret i64 %conv2
}
; Function Attrs: nounwind
define i64 @char_test2() #0 {
; CHECK: [[VAR3:r[0-9]+]]{{ *}}={{ *}}memb(##
; CHECK: sxtw([[VAR3]])
entry:
store i8 0, i8* @char_a, align 1
%0 = load i8* @char_c, align 1
%conv2 = sext i8 %0 to i64
ret i64 %conv2
}
; Function Attrs: nounwind
define i64 @int_test1() #0 {
; CHECK: [[VAR4:r[0-9]+]]{{ *}}={{ *}}memw(##
; CHECK: combine(#0, [[VAR4]])
entry:
store i32 0, i32* @int_a, align 4
%0 = load i32* @int_b, align 4
%conv = zext i32 %0 to i64
ret i64 %conv
}
; Function Attrs: nounwind
define i64 @int_test2() #0 {
; CHECK: [[VAR5:r[0-9]+]]{{ *}}={{ *}}memw(##
; CHECK: sxtw([[VAR5]])
entry:
store i32 0, i32* @int_a, align 4
%0 = load i32* @int_c, align 4
%conv = sext i32 %0 to i64
ret i64 %conv
}
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