llvm-project/llvm/test/CodeGen/Hexagon/extload-combine.ll
Fangrui Song 2208c97c1b [Hexagon,test] Change llc -march= to -mtriple=
Similar to 806761a7629df268c8aed49657aeccffa6bca449

-mtriple= specifies the full target triple while -march= merely sets the
architecture part of the default target triple, leaving a target triple which
may not make sense.

Therefore, -march= is error-prone and not recommended for tests without a target
triple. The issue has been benign as we recognize $unknown-apple-darwin as ELF instead
of rejecting it outrightly.
2024-12-15 10:20:22 -08:00

81 lines
2.0 KiB
LLVM

; RUN: llc -mtriple=hexagon -hexagon-small-data-threshold=0 -disable-hsdr < %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, ptr @a, align 2
%0 = load i16, ptr @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, ptr @a, align 2
%0 = load i16, ptr @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, ptr @char_a, align 1
%0 = load i8, ptr @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, ptr @char_a, align 1
%0 = load i8, ptr @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, ptr @int_a, align 4
%0 = load i32, ptr @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, ptr @int_a, align 4
%0 = load i32, ptr @int_c, align 4
%conv = sext i32 %0 to i64
ret i64 %conv
}