forked from llvm/llvm-project
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
[PowerPC] Handle FP physical register in inline asm constraint.
Do not defer to the base class when the register constraint is a physical fpr. The base class will select SPILLTOVSRRC as the register class and register allocation will fail on subtargets without VSX registers. Differential Revision: https://reviews.llvm.org/D91629
- Loading branch information
Showing
3 changed files
with
80 additions
and
10 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,23 @@ | ||
; RUN: llc -verify-machineinstrs < %s -mtriple=powerpc-unknown-linux-gnu \ | ||
; RUN: -mattr=+spe | FileCheck %s | ||
|
||
define i32 @test_f32(float %x) { | ||
; CHECK-LABEL: test_f32: | ||
; CHECK: #APP | ||
; CHECK-NEXT: efsctsi 31, 3 | ||
; CHECK-NEXT: #NO_APP | ||
entry: | ||
%0 = call i32 asm sideeffect "efsctsi $0, $1", "={f31},f"(float %x) | ||
ret i32 %0 | ||
} | ||
|
||
define i32 @test_f64(double %x) { | ||
; CHECK-LABEL: test_f64: | ||
; CHECK: #APP | ||
; CHECK-NEXT: efdctsi 0, 3 | ||
; CHECK-NEXT: #NO_APP | ||
entry: | ||
%0 = call i32 asm sideeffect "efdctsi $0, $1", "={f0},d"(double %x) | ||
ret i32 %0 | ||
} | ||
|
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,26 @@ | ||
; RUN: llc -mcpu=pwr7 -mattr=-altivec -verify-machineinstrs \ | ||
; RUN: -mtriple=powerpc-unknown-aix < %s | FileCheck %s | ||
|
||
; RUN: llc -mcpu=pwr7 -mattr=-altivec -verify-machineinstrs \ | ||
; RUN: -mtriple=powerpc64-unknown-aix < %s | FileCheck %s | ||
|
||
|
||
define dso_local double @test_double(double %a, double %b) { | ||
entry: | ||
%0 = tail call double asm "fadd. $0,$1,$2\0A", "={f31},d,d,0"(double %a, double %b, double 0.000000e+00) | ||
ret double %0 | ||
} | ||
|
||
; CHECK-LABEL: test_double | ||
; CHECK: #APP | ||
; CHECK-NEXT: fadd. 31,1,2 | ||
|
||
define dso_local signext i32 @test_int(double %a, double %b) { | ||
entry: | ||
%0 = tail call i32 asm "fadd. $0,$1,$2\0A", "={f0},d,d,0"(double %a, double %b, i32 0) | ||
ret i32 %0 | ||
} | ||
|
||
; CHECK-LABEL: test_int | ||
; CHECK: #APP | ||
; CHECK-NEXT: fadd. 0,1,2 |