mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 19:23:23 +01:00
99263ca636
For this example:
float test (int *arr) {
return arr[2];
}
We currently generate the following code:
li r4, 8
lxsiwax f0, r3, r4
xscvsxdsp f1, f0
With this patch, we will now generate:
addi r3, r3, 8
lxsiwax f0, 0, r3
xscvsxdsp f1, f0
Originally reported in: https://bugs.llvm.org/show_bug.cgi?id=27204
Differential Revision: https://reviews.llvm.org/D35027
llvm-svn: 307553
62 lines
2.2 KiB
LLVM
62 lines
2.2 KiB
LLVM
; Verify that small structures and float arguments are passed in the
|
|
; least significant part of a stack slot doubleword.
|
|
|
|
; RUN: llc -verify-machineinstrs < %s | FileCheck %s
|
|
|
|
target datalayout = "e-m:e-i64:64-n32:64"
|
|
target triple = "powerpc64le-unknown-linux-gnu"
|
|
|
|
%struct.large_arg = type { [8 x i64] }
|
|
%struct.small_arg = type { i16, i8 }
|
|
|
|
@gl = common global %struct.large_arg zeroinitializer, align 8
|
|
@gs = common global %struct.small_arg zeroinitializer, align 2
|
|
@gf = common global float 0.000000e+00, align 4
|
|
|
|
define void @callee1(%struct.small_arg* noalias nocapture sret %agg.result, %struct.large_arg* byval nocapture readnone %pad, %struct.small_arg* byval nocapture readonly %x) {
|
|
entry:
|
|
%0 = bitcast %struct.small_arg* %x to i32*
|
|
%1 = bitcast %struct.small_arg* %agg.result to i32*
|
|
%2 = load i32, i32* %0, align 2
|
|
store i32 %2, i32* %1, align 2
|
|
ret void
|
|
}
|
|
; CHECK: @callee1
|
|
; CHECK: lwz {{[0-9]+}}, 104(1)
|
|
; CHECK: blr
|
|
|
|
define void @caller1() {
|
|
entry:
|
|
%tmp = alloca %struct.small_arg, align 2
|
|
call void @test1(%struct.small_arg* sret %tmp, %struct.large_arg* byval @gl, %struct.small_arg* byval @gs)
|
|
ret void
|
|
}
|
|
; CHECK: @caller1
|
|
; CHECK: stw {{[0-9]+}}, 104(1)
|
|
; CHECK: bl test1
|
|
|
|
declare void @test1(%struct.small_arg* sret, %struct.large_arg* byval, %struct.small_arg* byval)
|
|
|
|
define float @callee2(float %pad1, float %pad2, float %pad3, float %pad4, float %pad5, float %pad6, float %pad7, float %pad8, float %pad9, float %pad10, float %pad11, float %pad12, float %pad13, float %x) {
|
|
entry:
|
|
ret float %x
|
|
}
|
|
; CHECK: @callee2
|
|
; CHECK: addi [[TOCREG:[0-9]+]], 1, 136
|
|
; CHECK: lxsspx {{[0-9]+}}, {{[0-9]+}}, [[TOCREG]]
|
|
; CHECK: blr
|
|
|
|
define void @caller2() {
|
|
entry:
|
|
%0 = load float, float* @gf, align 4
|
|
%call = tail call float @test2(float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float %0)
|
|
ret void
|
|
}
|
|
; CHECK: @caller2
|
|
; CHECK: addi [[TOCOFF:[0-9]+]], {{[0-9]+}}, 136
|
|
; CHECK: stxsspx {{[0-9]+}}, 0, [[TOCOFF]]
|
|
; CHECK: bl test2
|
|
|
|
declare float @test2(float, float, float, float, float, float, float, float, float, float, float, float, float, float)
|
|
|