3202f065b8
Errata fixes for various errata in different versions of the Leon variants of the Sparc 32 bit processor. The nature of the errata are listed in the comments preceding the errata fix passes. Relevant unit tests are implemented for each of these. Note: Running clang-format has changed a few other lines too, unrelated to the implemented errata fixes. These have been left in as this keeps the code formatting consistent. Differential Revision: http://reviews.llvm.org/D21960 llvm-svn: 274856
65 lines
3.0 KiB
LLVM
65 lines
3.0 KiB
LLVM
; RUN: llc %s -O0 -march=sparc -mcpu=ut699 -o - | FileCheck %s -check-prefix=NO_ROUND_FUNC
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; RUN: llc %s -O0 -march=sparc -mcpu=leon3 -mattr=+prvntroundchange -o - | FileCheck %s -check-prefix=NO_ROUND_FUNC
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; RUN: llc %s -O0 -march=sparc -mcpu=ut699 -mattr=-prvntroundchange -o - | FileCheck %s -check-prefix=ROUND_FUNC
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; RUN: llc %s -O0 -march=sparc -mcpu=leon3 -o - | FileCheck %s -check-prefix=ROUND_FUNC
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; NO_ROUND_FUNC-LABEL: test_round_change
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; NO_ROUND_FUNC-NOT: fesetround
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; ROUND_FUNC-LABEL: test_round_change
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; ROUND_FUNC: fesetround
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; ModuleID = '<stdin>'
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target datalayout = "E-m:e-p:32:32-i64:64-f128:64-n32-S64"
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target triple = "sparc-unknown--eabi"
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@.str = private unnamed_addr constant [17 x i8] c"-((-a)*b) != a*b\00", align 1
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@.str.1 = private unnamed_addr constant [7 x i8] c"test.c\00", align 1
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@__PRETTY_FUNCTION__.mult = private unnamed_addr constant [12 x i8] c"void mult()\00", align 1
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; Function Attrs: nounwind
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define void @test_round_change() #0 {
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entry:
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%a = alloca double, align 8
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%b = alloca double, align 8
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%x = alloca float, align 4
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store double 1.100000e+00, double* %a, align 8
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store double 1.010000e+01, double* %b, align 8
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store float 0x400921FA00000000, float* %x, align 4
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%call = call i32 @fesetround(i32 2048) #2
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%0 = load double, double* %a, align 8
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%sub = fsub double -0.000000e+00, %0
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%1 = load double, double* %b, align 8
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%mul = fmul double %sub, %1
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%sub1 = fsub double -0.000000e+00, %mul
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%2 = load double, double* %a, align 8
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%3 = load double, double* %b, align 8
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%mul2 = fmul double %2, %3
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%cmp = fcmp une double %sub1, %mul2
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br i1 %cmp, label %cond.true, label %cond.false
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cond.true: ; preds = %entry
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br label %cond.end
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cond.false: ; preds = %entry
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call void @__assert_fail(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str, i32 0, i32 0), i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i32 0, i32 0), i32 10, i8* getelementptr inbounds ([12 x i8], [12 x i8]* @__PRETTY_FUNCTION__.mult, i32 0, i32 0)) #3
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unreachable
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; No predecessors!
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br label %cond.end
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cond.end: ; preds = %4, %cond.true
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ret void
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}
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; Function Attrs: nounwind
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declare i32 @fesetround(i32) #0
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; Function Attrs: noreturn nounwind
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declare void @__assert_fail(i8*, i8*, i32, i8*) #1
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attributes #0 = { nounwind "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { noreturn nounwind "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #2 = { nounwind }
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attributes #3 = { noreturn nounwind } |