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clang-p2996/llvm/test/CodeGen/Mips/GlobalISel/irtranslator/float_args.ll
Craig Topper 7fde4ffbd3 [Mips][GISel] Fix a couple issues with passing f64 in 32-bit GPRs. (#69131) 
MipsIncomingValueHandler::assignCustomValue should return 1 instead of
2. The return value is the number of additional ArgLocs being consumed.
It's assumed that at least 1 is consumed.

Correct the LocVT used for the spill when there are no registers left.
It should be f64 instead of i32. This allows a workaround to be removed
in the SelectionDAG path.
2023-10-25 11:28:22 -07:00

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; NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
; RUN: llc -O0 -mtriple=mipsel-linux-gnu -global-isel -stop-after=irtranslator -verify-machineinstrs %s -o - | FileCheck %s -check-prefixes=FP32
; RUN: llc -O0 -mtriple=mipsel-linux-gnu -mattr=+fp64,+mips32r2 -global-isel -stop-after=irtranslator -verify-machineinstrs %s -o - | FileCheck %s -check-prefixes=FP64
define float @float_in_fpr(float %a, float %b) {
; FP32-LABEL: name: float_in_fpr
; FP32: bb.1.entry:
; FP32-NEXT: liveins: $f12, $f14
; FP32-NEXT: {{ $}}
; FP32-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $f12
; FP32-NEXT: [[COPY1:%[0-9]+]]:_(s32) = COPY $f14
; FP32-NEXT: $f0 = COPY [[COPY1]](s32)
; FP32-NEXT: RetRA implicit $f0
;
; FP64-LABEL: name: float_in_fpr
; FP64: bb.1.entry:
; FP64-NEXT: liveins: $f12, $f14
; FP64-NEXT: {{ $}}
; FP64-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $f12
; FP64-NEXT: [[COPY1:%[0-9]+]]:_(s32) = COPY $f14
; FP64-NEXT: $f0 = COPY [[COPY1]](s32)
; FP64-NEXT: RetRA implicit $f0
entry:
ret float %b
}
define double @double_in_fpr(double %a, double %b) {
; FP32-LABEL: name: double_in_fpr
; FP32: bb.1.entry:
; FP32-NEXT: liveins: $d6, $d7
; FP32-NEXT: {{ $}}
; FP32-NEXT: [[COPY:%[0-9]+]]:_(s64) = COPY $d6
; FP32-NEXT: [[COPY1:%[0-9]+]]:_(s64) = COPY $d7
; FP32-NEXT: $d0 = COPY [[COPY1]](s64)
; FP32-NEXT: RetRA implicit $d0
;
; FP64-LABEL: name: double_in_fpr
; FP64: bb.1.entry:
; FP64-NEXT: liveins: $d12_64, $d14_64
; FP64-NEXT: {{ $}}
; FP64-NEXT: [[COPY:%[0-9]+]]:_(s64) = COPY $d12_64
; FP64-NEXT: [[COPY1:%[0-9]+]]:_(s64) = COPY $d14_64
; FP64-NEXT: $d0_64 = COPY [[COPY1]](s64)
; FP64-NEXT: RetRA implicit $d0_64
entry:
ret double %b
}
define float @float_in_gpr(i32 %a, float %b) {
; FP32-LABEL: name: float_in_gpr
; FP32: bb.1.entry:
; FP32-NEXT: liveins: $a0, $a1
; FP32-NEXT: {{ $}}
; FP32-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $a0
; FP32-NEXT: [[COPY1:%[0-9]+]]:_(s32) = COPY $a1
; FP32-NEXT: $f0 = COPY [[COPY1]](s32)
; FP32-NEXT: RetRA implicit $f0
;
; FP64-LABEL: name: float_in_gpr
; FP64: bb.1.entry:
; FP64-NEXT: liveins: $a0, $a1
; FP64-NEXT: {{ $}}
; FP64-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $a0
; FP64-NEXT: [[COPY1:%[0-9]+]]:_(s32) = COPY $a1
; FP64-NEXT: $f0 = COPY [[COPY1]](s32)
; FP64-NEXT: RetRA implicit $f0
entry:
ret float %b
}
define double @double_in_gpr(i32 %a, double %b) {
; FP32-LABEL: name: double_in_gpr
; FP32: bb.1.entry:
; FP32-NEXT: liveins: $a0, $a2, $a3
; FP32-NEXT: {{ $}}
; FP32-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $a0
; FP32-NEXT: [[COPY1:%[0-9]+]]:_(s32) = COPY $a2
; FP32-NEXT: [[COPY2:%[0-9]+]]:_(s32) = COPY $a3
; FP32-NEXT: [[MV:%[0-9]+]]:_(s64) = G_MERGE_VALUES [[COPY1]](s32), [[COPY2]](s32)
; FP32-NEXT: $d0 = COPY [[MV]](s64)
; FP32-NEXT: RetRA implicit $d0
;
; FP64-LABEL: name: double_in_gpr
; FP64: bb.1.entry:
; FP64-NEXT: liveins: $a0, $a2, $a3
; FP64-NEXT: {{ $}}
; FP64-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $a0
; FP64-NEXT: [[COPY1:%[0-9]+]]:_(s32) = COPY $a2
; FP64-NEXT: [[COPY2:%[0-9]+]]:_(s32) = COPY $a3
; FP64-NEXT: [[MV:%[0-9]+]]:_(s64) = G_MERGE_VALUES [[COPY1]](s32), [[COPY2]](s32)
; FP64-NEXT: $d0_64 = COPY [[MV]](s64)
; FP64-NEXT: RetRA implicit $d0_64
entry:
ret double %b
}
define double @two_double_in_gpr(i32 %a, double %b, double %c) {
; FP32-LABEL: name: two_double_in_gpr
; FP32: bb.1.entry:
; FP32-NEXT: liveins: $a0, $a2, $a3
; FP32-NEXT: {{ $}}
; FP32-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $a0
; FP32-NEXT: [[COPY1:%[0-9]+]]:_(s32) = COPY $a2
; FP32-NEXT: [[COPY2:%[0-9]+]]:_(s32) = COPY $a3
; FP32-NEXT: [[MV:%[0-9]+]]:_(s64) = G_MERGE_VALUES [[COPY1]](s32), [[COPY2]](s32)
; FP32-NEXT: [[FRAME_INDEX:%[0-9]+]]:_(p0) = G_FRAME_INDEX %fixed-stack.0
; FP32-NEXT: [[LOAD:%[0-9]+]]:_(s64) = G_LOAD [[FRAME_INDEX]](p0) :: (load (s64) from %fixed-stack.0)
; FP32-NEXT: $d0 = COPY [[LOAD]](s64)
; FP32-NEXT: RetRA implicit $d0
;
; FP64-LABEL: name: two_double_in_gpr
; FP64: bb.1.entry:
; FP64-NEXT: liveins: $a0, $a2, $a3
; FP64-NEXT: {{ $}}
; FP64-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $a0
; FP64-NEXT: [[COPY1:%[0-9]+]]:_(s32) = COPY $a2
; FP64-NEXT: [[COPY2:%[0-9]+]]:_(s32) = COPY $a3
; FP64-NEXT: [[MV:%[0-9]+]]:_(s64) = G_MERGE_VALUES [[COPY1]](s32), [[COPY2]](s32)
; FP64-NEXT: [[FRAME_INDEX:%[0-9]+]]:_(p0) = G_FRAME_INDEX %fixed-stack.0
; FP64-NEXT: [[LOAD:%[0-9]+]]:_(s64) = G_LOAD [[FRAME_INDEX]](p0) :: (load (s64) from %fixed-stack.0)
; FP64-NEXT: $d0_64 = COPY [[LOAD]](s64)
; FP64-NEXT: RetRA implicit $d0_64
entry:
ret double %c
}
define float @call_float_in_fpr(float %a, float %b) {
; FP32-LABEL: name: call_float_in_fpr
; FP32: bb.1.entry:
; FP32-NEXT: liveins: $f12, $f14
; FP32-NEXT: {{ $}}
; FP32-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $f12
; FP32-NEXT: [[COPY1:%[0-9]+]]:_(s32) = COPY $f14
; FP32-NEXT: ADJCALLSTACKDOWN 16, 0, implicit-def $sp, implicit $sp
; FP32-NEXT: $f12 = COPY [[COPY]](s32)
; FP32-NEXT: $f14 = COPY [[COPY1]](s32)
; FP32-NEXT: JAL @float_in_fpr, csr_o32, implicit-def $ra, implicit-def $sp, implicit $f12, implicit $f14, implicit-def $f0
; FP32-NEXT: [[COPY2:%[0-9]+]]:_(s32) = COPY $f0
; FP32-NEXT: ADJCALLSTACKUP 16, 0, implicit-def $sp, implicit $sp
; FP32-NEXT: $f0 = COPY [[COPY2]](s32)
; FP32-NEXT: RetRA implicit $f0
;
; FP64-LABEL: name: call_float_in_fpr
; FP64: bb.1.entry:
; FP64-NEXT: liveins: $f12, $f14
; FP64-NEXT: {{ $}}
; FP64-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $f12
; FP64-NEXT: [[COPY1:%[0-9]+]]:_(s32) = COPY $f14
; FP64-NEXT: ADJCALLSTACKDOWN 16, 0, implicit-def $sp, implicit $sp
; FP64-NEXT: $f12 = COPY [[COPY]](s32)
; FP64-NEXT: $f14 = COPY [[COPY1]](s32)
; FP64-NEXT: JAL @float_in_fpr, csr_o32_fp64, implicit-def $ra, implicit-def $sp, implicit $f12, implicit $f14, implicit-def $f0
; FP64-NEXT: [[COPY2:%[0-9]+]]:_(s32) = COPY $f0
; FP64-NEXT: ADJCALLSTACKUP 16, 0, implicit-def $sp, implicit $sp
; FP64-NEXT: $f0 = COPY [[COPY2]](s32)
; FP64-NEXT: RetRA implicit $f0
entry:
%call = call float @float_in_fpr(float %a, float %b)
ret float %call
}
define double @call_double_in_fpr(double %a, double %b) {
; FP32-LABEL: name: call_double_in_fpr
; FP32: bb.1.entry:
; FP32-NEXT: liveins: $d6, $d7
; FP32-NEXT: {{ $}}
; FP32-NEXT: [[COPY:%[0-9]+]]:_(s64) = COPY $d6
; FP32-NEXT: [[COPY1:%[0-9]+]]:_(s64) = COPY $d7
; FP32-NEXT: ADJCALLSTACKDOWN 16, 0, implicit-def $sp, implicit $sp
; FP32-NEXT: $d6 = COPY [[COPY]](s64)
; FP32-NEXT: $d7 = COPY [[COPY1]](s64)
; FP32-NEXT: JAL @double_in_fpr, csr_o32, implicit-def $ra, implicit-def $sp, implicit $d6, implicit $d7, implicit-def $d0
; FP32-NEXT: [[COPY2:%[0-9]+]]:_(s64) = COPY $d0
; FP32-NEXT: ADJCALLSTACKUP 16, 0, implicit-def $sp, implicit $sp
; FP32-NEXT: $d0 = COPY [[COPY2]](s64)
; FP32-NEXT: RetRA implicit $d0
;
; FP64-LABEL: name: call_double_in_fpr
; FP64: bb.1.entry:
; FP64-NEXT: liveins: $d12_64, $d14_64
; FP64-NEXT: {{ $}}
; FP64-NEXT: [[COPY:%[0-9]+]]:_(s64) = COPY $d12_64
; FP64-NEXT: [[COPY1:%[0-9]+]]:_(s64) = COPY $d14_64
; FP64-NEXT: ADJCALLSTACKDOWN 16, 0, implicit-def $sp, implicit $sp
; FP64-NEXT: $d12_64 = COPY [[COPY]](s64)
; FP64-NEXT: $d14_64 = COPY [[COPY1]](s64)
; FP64-NEXT: JAL @double_in_fpr, csr_o32_fp64, implicit-def $ra, implicit-def $sp, implicit $d12_64, implicit $d14_64, implicit-def $d0_64
; FP64-NEXT: [[COPY2:%[0-9]+]]:_(s64) = COPY $d0_64
; FP64-NEXT: ADJCALLSTACKUP 16, 0, implicit-def $sp, implicit $sp
; FP64-NEXT: $d0_64 = COPY [[COPY2]](s64)
; FP64-NEXT: RetRA implicit $d0_64
entry:
%call = call double @double_in_fpr(double %a, double %b)
ret double %call
}
define float @call_float_in_gpr(i32 %a, float %b) {
; FP32-LABEL: name: call_float_in_gpr
; FP32: bb.1.entry:
; FP32-NEXT: liveins: $a0, $a1
; FP32-NEXT: {{ $}}
; FP32-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $a0
; FP32-NEXT: [[COPY1:%[0-9]+]]:_(s32) = COPY $a1
; FP32-NEXT: ADJCALLSTACKDOWN 16, 0, implicit-def $sp, implicit $sp
; FP32-NEXT: $a0 = COPY [[COPY]](s32)
; FP32-NEXT: $a1 = COPY [[COPY1]](s32)
; FP32-NEXT: JAL @float_in_gpr, csr_o32, implicit-def $ra, implicit-def $sp, implicit $a0, implicit $a1, implicit-def $f0
; FP32-NEXT: [[COPY2:%[0-9]+]]:_(s32) = COPY $f0
; FP32-NEXT: ADJCALLSTACKUP 16, 0, implicit-def $sp, implicit $sp
; FP32-NEXT: $f0 = COPY [[COPY2]](s32)
; FP32-NEXT: RetRA implicit $f0
;
; FP64-LABEL: name: call_float_in_gpr
; FP64: bb.1.entry:
; FP64-NEXT: liveins: $a0, $a1
; FP64-NEXT: {{ $}}
; FP64-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $a0
; FP64-NEXT: [[COPY1:%[0-9]+]]:_(s32) = COPY $a1
; FP64-NEXT: ADJCALLSTACKDOWN 16, 0, implicit-def $sp, implicit $sp
; FP64-NEXT: $a0 = COPY [[COPY]](s32)
; FP64-NEXT: $a1 = COPY [[COPY1]](s32)
; FP64-NEXT: JAL @float_in_gpr, csr_o32_fp64, implicit-def $ra, implicit-def $sp, implicit $a0, implicit $a1, implicit-def $f0
; FP64-NEXT: [[COPY2:%[0-9]+]]:_(s32) = COPY $f0
; FP64-NEXT: ADJCALLSTACKUP 16, 0, implicit-def $sp, implicit $sp
; FP64-NEXT: $f0 = COPY [[COPY2]](s32)
; FP64-NEXT: RetRA implicit $f0
entry:
%call = call float @float_in_gpr(i32 %a, float %b)
ret float %call
}
define double @call_double_in_gpr(i32 %a, double %b) {
; FP32-LABEL: name: call_double_in_gpr
; FP32: bb.1.entry:
; FP32-NEXT: liveins: $a0, $a2, $a3
; FP32-NEXT: {{ $}}
; FP32-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $a0
; FP32-NEXT: [[COPY1:%[0-9]+]]:_(s32) = COPY $a2
; FP32-NEXT: [[COPY2:%[0-9]+]]:_(s32) = COPY $a3
; FP32-NEXT: [[MV:%[0-9]+]]:_(s64) = G_MERGE_VALUES [[COPY1]](s32), [[COPY2]](s32)
; FP32-NEXT: ADJCALLSTACKDOWN 16, 0, implicit-def $sp, implicit $sp
; FP32-NEXT: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[MV]](s64)
; FP32-NEXT: $a0 = COPY [[COPY]](s32)
; FP32-NEXT: $a2 = COPY [[UV]](s32)
; FP32-NEXT: $a3 = COPY [[UV1]](s32)
; FP32-NEXT: JAL @double_in_gpr, csr_o32, implicit-def $ra, implicit-def $sp, implicit $a0, implicit-def $d0
; FP32-NEXT: [[COPY3:%[0-9]+]]:_(s64) = COPY $d0
; FP32-NEXT: ADJCALLSTACKUP 16, 0, implicit-def $sp, implicit $sp
; FP32-NEXT: $d0 = COPY [[COPY3]](s64)
; FP32-NEXT: RetRA implicit $d0
;
; FP64-LABEL: name: call_double_in_gpr
; FP64: bb.1.entry:
; FP64-NEXT: liveins: $a0, $a2, $a3
; FP64-NEXT: {{ $}}
; FP64-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $a0
; FP64-NEXT: [[COPY1:%[0-9]+]]:_(s32) = COPY $a2
; FP64-NEXT: [[COPY2:%[0-9]+]]:_(s32) = COPY $a3
; FP64-NEXT: [[MV:%[0-9]+]]:_(s64) = G_MERGE_VALUES [[COPY1]](s32), [[COPY2]](s32)
; FP64-NEXT: ADJCALLSTACKDOWN 16, 0, implicit-def $sp, implicit $sp
; FP64-NEXT: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[MV]](s64)
; FP64-NEXT: $a0 = COPY [[COPY]](s32)
; FP64-NEXT: $a2 = COPY [[UV]](s32)
; FP64-NEXT: $a3 = COPY [[UV1]](s32)
; FP64-NEXT: JAL @double_in_gpr, csr_o32_fp64, implicit-def $ra, implicit-def $sp, implicit $a0, implicit-def $d0_64
; FP64-NEXT: [[COPY3:%[0-9]+]]:_(s64) = COPY $d0_64
; FP64-NEXT: ADJCALLSTACKUP 16, 0, implicit-def $sp, implicit $sp
; FP64-NEXT: $d0_64 = COPY [[COPY3]](s64)
; FP64-NEXT: RetRA implicit $d0_64
entry:
%call = call double @double_in_gpr(i32 %a, double %b)
ret double %call
}
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