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[Inliner] Handle 'no-signed-zeros-fp-math' function attribute. 

All other floating point math optimization related attribute are merged
in a conservative way during function inlining. This commit adds the
merge rule for the 'no-signed-zeros-fp-math' attribute.

Differential Revision: https://reviews.llvm.org/D81714
This commit is contained in:
Michele Scandale 2020-06-24 17:47:03 -07:00 committed by Akira Hatanaka
parent 06412dae82
commit 413a187856
2 changed files with 170 additions and 0 deletions
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2
llvm/include/llvm/IR/Attributes.td
View File

@ -233,6 +233,7 @@ def ZExt : EnumAttr<"zeroext">;
def LessPreciseFPMAD : StrBoolAttr<"less-precise-fpmad">;
def NoInfsFPMath : StrBoolAttr<"no-infs-fp-math">;
def NoNansFPMath : StrBoolAttr<"no-nans-fp-math">;
def NoSignedZerosFPMath : StrBoolAttr<"no-signed-zeros-fp-math">;
def UnsafeFPMath : StrBoolAttr<"unsafe-fp-math">;
def NoJumpTables : StrBoolAttr<"no-jump-tables">;
def NoInlineLineTables : StrBoolAttr<"no-inline-line-tables">;
@ -270,6 +271,7 @@ class MergeRule<string F> {
def : MergeRule<"setAND<LessPreciseFPMADAttr>">;
def : MergeRule<"setAND<NoInfsFPMathAttr>">;
def : MergeRule<"setAND<NoNansFPMathAttr>">;
def : MergeRule<"setAND<NoSignedZerosFPMathAttr>">;
def : MergeRule<"setAND<UnsafeFPMathAttr>">;
def : MergeRule<"setOR<NoImplicitFloatAttr>">;
def : MergeRule<"setOR<NoJumpTablesAttr>">;

168
llvm/test/Transforms/Inline/attributes.ll
View File

@ -440,9 +440,177 @@ define i32 @test_null-pointer-is-valid2(i32 %i) null_pointer_is_valid {
; CHECK-NEXT: ret i32
}
define i32 @no-infs-fp-math_callee0(i32 %i) "no-infs-fp-math"="false" {
ret i32 %i
; CHECK: @no-infs-fp-math_callee0(i32 %i) [[NO_INFS_FPMATH_FALSE:#[0-9]+]] {
; CHECK-NEXT: ret i32
}
define i32 @no-infs-fp-math_callee1(i32 %i) "no-infs-fp-math"="true" {
ret i32 %i
; CHECK: @no-infs-fp-math_callee1(i32 %i) [[NO_INFS_FPMATH_TRUE:#[0-9]+]] {
; CHECK-NEXT: ret i32
}
define i32 @test_no-infs-fp-math0(i32 %i) "no-infs-fp-math"="false" {
%1 = call i32 @no-infs-fp-math_callee0(i32 %i)
ret i32 %1
; CHECK: @test_no-infs-fp-math0(i32 %i) [[NO_INFS_FPMATH_FALSE]] {
; CHECK-NEXT: ret i32
}
define i32 @test_no-infs-fp-math1(i32 %i) "no-infs-fp-math"="false" {
%1 = call i32 @no-infs-fp-math_callee1(i32 %i)
ret i32 %1
; CHECK: @test_no-infs-fp-math1(i32 %i) [[NO_INFS_FPMATH_FALSE]] {
; CHECK-NEXT: ret i32
}
define i32 @test_no-infs-fp-math2(i32 %i) "no-infs-fp-math"="true" {
%1 = call i32 @no-infs-fp-math_callee0(i32 %i)
ret i32 %1
; CHECK: @test_no-infs-fp-math2(i32 %i) [[NO_INFS_FPMATH_FALSE]] {
; CHECK-NEXT: ret i32
}
define i32 @test_no-infs-fp-math3(i32 %i) "no-infs-fp-math"="true" {
%1 = call i32 @no-infs-fp-math_callee1(i32 %i)
ret i32 %1
; CHECK: @test_no-infs-fp-math3(i32 %i) [[NO_INFS_FPMATH_TRUE]] {
; CHECK-NEXT: ret i32
}
define i32 @no-nans-fp-math_callee0(i32 %i) "no-nans-fp-math"="false" {
ret i32 %i
; CHECK: @no-nans-fp-math_callee0(i32 %i) [[NO_NANS_FPMATH_FALSE:#[0-9]+]] {
; CHECK-NEXT: ret i32
}
define i32 @no-nans-fp-math_callee1(i32 %i) "no-nans-fp-math"="true" {
ret i32 %i
; CHECK: @no-nans-fp-math_callee1(i32 %i) [[NO_NANS_FPMATH_TRUE:#[0-9]+]] {
; CHECK-NEXT: ret i32
}
define i32 @test_no-nans-fp-math0(i32 %i) "no-nans-fp-math"="false" {
%1 = call i32 @no-nans-fp-math_callee0(i32 %i)
ret i32 %1
; CHECK: @test_no-nans-fp-math0(i32 %i) [[NO_NANS_FPMATH_FALSE]] {
; CHECK-NEXT: ret i32
}
define i32 @test_no-nans-fp-math1(i32 %i) "no-nans-fp-math"="false" {
%1 = call i32 @no-nans-fp-math_callee1(i32 %i)
ret i32 %1
; CHECK: @test_no-nans-fp-math1(i32 %i) [[NO_NANS_FPMATH_FALSE]] {
; CHECK-NEXT: ret i32
}
define i32 @test_no-nans-fp-math2(i32 %i) "no-nans-fp-math"="true" {
%1 = call i32 @no-nans-fp-math_callee0(i32 %i)
ret i32 %1
; CHECK: @test_no-nans-fp-math2(i32 %i) [[NO_NANS_FPMATH_FALSE]] {
; CHECK-NEXT: ret i32
}
define i32 @test_no-nans-fp-math3(i32 %i) "no-nans-fp-math"="true" {
%1 = call i32 @no-nans-fp-math_callee1(i32 %i)
ret i32 %1
; CHECK: @test_no-nans-fp-math3(i32 %i) [[NO_NANS_FPMATH_TRUE]] {
; CHECK-NEXT: ret i32
}
define i32 @no-signed-zeros-fp-math_callee0(i32 %i) "no-signed-zeros-fp-math"="false" {
ret i32 %i
; CHECK: @no-signed-zeros-fp-math_callee0(i32 %i) [[NO_SIGNED_ZEROS_FPMATH_FALSE:#[0-9]+]] {
; CHECK-NEXT: ret i32
}
define i32 @no-signed-zeros-fp-math_callee1(i32 %i) "no-signed-zeros-fp-math"="true" {
ret i32 %i
; CHECK: @no-signed-zeros-fp-math_callee1(i32 %i) [[NO_SIGNED_ZEROS_FPMATH_TRUE:#[0-9]+]] {
; CHECK-NEXT: ret i32
}
define i32 @test_no-signed-zeros-fp-math0(i32 %i) "no-signed-zeros-fp-math"="false" {
%1 = call i32 @no-signed-zeros-fp-math_callee0(i32 %i)
ret i32 %1
; CHECK: @test_no-signed-zeros-fp-math0(i32 %i) [[NO_SIGNED_ZEROS_FPMATH_FALSE]] {
; CHECK-NEXT: ret i32
}
define i32 @test_no-signed-zeros-fp-math1(i32 %i) "no-signed-zeros-fp-math"="false" {
%1 = call i32 @no-signed-zeros-fp-math_callee1(i32 %i)
ret i32 %1
; CHECK: @test_no-signed-zeros-fp-math1(i32 %i) [[NO_SIGNED_ZEROS_FPMATH_FALSE]] {
; CHECK-NEXT: ret i32
}
define i32 @test_no-signed-zeros-fp-math2(i32 %i) "no-signed-zeros-fp-math"="true" {
%1 = call i32 @no-signed-zeros-fp-math_callee0(i32 %i)
ret i32 %1
; CHECK: @test_no-signed-zeros-fp-math2(i32 %i) [[NO_SIGNED_ZEROS_FPMATH_FALSE]] {
; CHECK-NEXT: ret i32
}
define i32 @test_no-signed-zeros-fp-math3(i32 %i) "no-signed-zeros-fp-math"="true" {
%1 = call i32 @no-signed-zeros-fp-math_callee1(i32 %i)
ret i32 %1
; CHECK: @test_no-signed-zeros-fp-math3(i32 %i) [[NO_SIGNED_ZEROS_FPMATH_TRUE]] {
; CHECK-NEXT: ret i32
}
define i32 @unsafe-fp-math_callee0(i32 %i) "unsafe-fp-math"="false" {
ret i32 %i
; CHECK: @unsafe-fp-math_callee0(i32 %i) [[UNSAFE_FPMATH_FALSE:#[0-9]+]] {
; CHECK-NEXT: ret i32
}
define i32 @unsafe-fp-math_callee1(i32 %i) "unsafe-fp-math"="true" {
ret i32 %i
; CHECK: @unsafe-fp-math_callee1(i32 %i) [[UNSAFE_FPMATH_TRUE:#[0-9]+]] {
; CHECK-NEXT: ret i32
}
define i32 @test_unsafe-fp-math0(i32 %i) "unsafe-fp-math"="false" {
%1 = call i32 @unsafe-fp-math_callee0(i32 %i)
ret i32 %1
; CHECK: @test_unsafe-fp-math0(i32 %i) [[UNSAFE_FPMATH_FALSE]] {
; CHECK-NEXT: ret i32
}
define i32 @test_unsafe-fp-math1(i32 %i) "unsafe-fp-math"="false" {
%1 = call i32 @unsafe-fp-math_callee1(i32 %i)
ret i32 %1
; CHECK: @test_unsafe-fp-math1(i32 %i) [[UNSAFE_FPMATH_FALSE]] {
; CHECK-NEXT: ret i32
}
define i32 @test_unsafe-fp-math2(i32 %i) "unsafe-fp-math"="true" {
%1 = call i32 @unsafe-fp-math_callee0(i32 %i)
ret i32 %1
; CHECK: @test_unsafe-fp-math2(i32 %i) [[UNSAFE_FPMATH_FALSE]] {
; CHECK-NEXT: ret i32
}
define i32 @test_unsafe-fp-math3(i32 %i) "unsafe-fp-math"="true" {
%1 = call i32 @unsafe-fp-math_callee1(i32 %i)
ret i32 %1
; CHECK: @test_unsafe-fp-math3(i32 %i) [[UNSAFE_FPMATH_TRUE]] {
; CHECK-NEXT: ret i32
}
; CHECK: attributes [[SLH]] = { speculative_load_hardening }
; CHECK: attributes [[FPMAD_FALSE]] = { "less-precise-fpmad"="false" }
; CHECK: attributes [[FPMAD_TRUE]] = { "less-precise-fpmad"="true" }
; CHECK: attributes [[NOIMPLICITFLOAT]] = { noimplicitfloat }
; CHECK: attributes [[NOUSEJUMPTABLES]] = { "no-jump-tables"="true" }
; CHECK: attributes [[NULLPOINTERISVALID]] = { null_pointer_is_valid }
; CHECK: attributes [[NO_INFS_FPMATH_FALSE]] = { "no-infs-fp-math"="false" }
; CHECK: attributes [[NO_INFS_FPMATH_TRUE]] = { "no-infs-fp-math"="true" }
; CHECK: attributes [[NO_NANS_FPMATH_FALSE]] = { "no-nans-fp-math"="false" }
; CHECK: attributes [[NO_NANS_FPMATH_TRUE]] = { "no-nans-fp-math"="true" }
; CHECK: attributes [[NO_SIGNED_ZEROS_FPMATH_FALSE]] = { "no-signed-zeros-fp-math"="false" }
; CHECK: attributes [[NO_SIGNED_ZEROS_FPMATH_TRUE]] = { "no-signed-zeros-fp-math"="true" }
; CHECK: attributes [[UNSAFE_FPMATH_FALSE]] = { "unsafe-fp-math"="false" }
; CHECK: attributes [[UNSAFE_FPMATH_TRUE]] = { "unsafe-fp-math"="true" }