Some tests for APFloat conversions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42303 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/ldzero.ll b/test/CodeGen/X86/ldzero.ll
new file mode 100644 (file)
index 0000000..2db78a2
--- /dev/null
+++ b/test/CodeGen/X86/ldzero.ll
@@ -0,0 +1,43 @@
+; RUN: llvm-as < %s | llc
+; verify PR 1700 is still fixed
+; ModuleID = 'hh.c'
+target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
+target triple = "i686-apple-darwin8"
+
+define x86_fp80 @x() {
+entry:
+       %retval = alloca x86_fp80, align 16             ; <x86_fp80*> [#uses=2]
+       %tmp = alloca x86_fp80, align 16                ; <x86_fp80*> [#uses=2]
+       %d = alloca double, align 8             ; <double*> [#uses=2]
+       %"alloca point" = bitcast i32 0 to i32          ; <i32> [#uses=0]
+       store double 0.000000e+00, double* %d, align 8
+       %tmp1 = load double* %d, align 8                ; <double> [#uses=1]
+       %tmp12 = fpext double %tmp1 to x86_fp80         ; <x86_fp80> [#uses=1]
+       store x86_fp80 %tmp12, x86_fp80* %tmp, align 16
+       %tmp3 = load x86_fp80* %tmp, align 16           ; <x86_fp80> [#uses=1]
+       store x86_fp80 %tmp3, x86_fp80* %retval, align 16
+       br label %return
+
+return:                ; preds = %entry
+       %retval4 = load x86_fp80* %retval               ; <x86_fp80> [#uses=1]
+       ret x86_fp80 %retval4
+}
+
+define double @y() {
+entry:
+       %retval = alloca double, align 8                ; <double*> [#uses=2]
+       %tmp = alloca double, align 8           ; <double*> [#uses=2]
+       %ld = alloca x86_fp80, align 16         ; <x86_fp80*> [#uses=2]
+       %"alloca point" = bitcast i32 0 to i32          ; <i32> [#uses=0]
+       store x86_fp80 0xK00000000000000000000, x86_fp80* %ld, align 16
+       %tmp1 = load x86_fp80* %ld, align 16            ; <x86_fp80> [#uses=1]
+       %tmp12 = fptrunc x86_fp80 %tmp1 to double               ; <double> [#uses=1]
+       store double %tmp12, double* %tmp, align 8
+       %tmp3 = load double* %tmp, align 8              ; <double> [#uses=1]
+       store double %tmp3, double* %retval, align 8
+       br label %return
+
+return:                ; preds = %entry
+       %retval4 = load double* %retval         ; <double> [#uses=1]
+       ret double %retval4
+}

diff --git a/test/CodeGen/X86/nancvt.ll b/test/CodeGen/X86/nancvt.ll
new file mode 100644 (file)
index 0000000..9e5b73d
--- /dev/null
+++ b/test/CodeGen/X86/nancvt.ll
@@ -0,0 +1,180 @@
+; RUN: llvm-as < %s | opt -std-compile-opts | llc | grep 2147027116 | count 3
+; RUN: llvm-as < %s | opt -std-compile-opts | llc | grep 2147228864 | count 3
+; RUN: llvm-as < %s | opt -std-compile-opts | llc | grep 2146502828 | count 3
+; RUN: llvm-as < %s | opt -std-compile-opts | llc | grep 2143034560 | count 3
+; Compile time conversions of NaNs.
+; ModuleID = 'nan2.c'
+target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
+target triple = "i686-apple-darwin8"
+       %struct..0anon = type { float }
+       %struct..1anon = type { double }
+@fnan = constant [3 x i32] [ i32 2143831397, i32 2143831396, i32 2143831398 ]          ; <[3 x i32]*> [#uses=1]
+@dnan = constant [3 x i64] [ i64 9223235251041752696, i64 9223235251041752697, i64 9223235250773317239 ], align 8              ; <[3 x i64]*> [#uses=1]
+@fsnan = constant [3 x i32] [ i32 2139637093, i32 2139637092, i32 2139637094 ]         ; <[3 x i32]*> [#uses=1]
+@dsnan = constant [3 x i64] [ i64 9220983451228067448, i64 9220983451228067449, i64 9220983450959631991 ], align 8             ; <[3 x i64]*> [#uses=1]
+@.str = internal constant [10 x i8] c"%08x%08x\0A\00"          ; <[10 x i8]*> [#uses=2]
+@.str1 = internal constant [6 x i8] c"%08x\0A\00"              ; <[6 x i8]*> [#uses=2]
+
+define i32 @main() {
+entry:
+       %retval = alloca i32, align 4           ; <i32*> [#uses=1]
+       %i = alloca i32, align 4                ; <i32*> [#uses=20]
+       %uf = alloca %struct..0anon, align 4            ; <%struct..0anon*> [#uses=8]
+       %ud = alloca %struct..1anon, align 8            ; <%struct..1anon*> [#uses=10]
+       %"alloca point" = bitcast i32 0 to i32          ; <i32> [#uses=0]
+       store i32 0, i32* %i, align 4
+       br label %bb23
+
+bb:            ; preds = %bb23
+       %tmp = load i32* %i, align 4            ; <i32> [#uses=1]
+       %tmp1 = getelementptr [3 x i32]* @fnan, i32 0, i32 %tmp         ; <i32*> [#uses=1]
+       %tmp2 = load i32* %tmp1, align 4                ; <i32> [#uses=1]
+       %tmp3 = getelementptr %struct..0anon* %uf, i32 0, i32 0         ; <float*> [#uses=1]
+       %tmp34 = bitcast float* %tmp3 to i32*           ; <i32*> [#uses=1]
+       store i32 %tmp2, i32* %tmp34, align 4
+       %tmp5 = getelementptr %struct..0anon* %uf, i32 0, i32 0         ; <float*> [#uses=1]
+       %tmp6 = load float* %tmp5, align 4              ; <float> [#uses=1]
+       %tmp67 = fpext float %tmp6 to double            ; <double> [#uses=1]
+       %tmp8 = getelementptr %struct..1anon* %ud, i32 0, i32 0         ; <double*> [#uses=1]
+       store double %tmp67, double* %tmp8, align 8
+       %tmp9 = getelementptr %struct..1anon* %ud, i32 0, i32 0         ; <double*> [#uses=1]
+       %tmp910 = bitcast double* %tmp9 to i64*         ; <i64*> [#uses=1]
+       %tmp11 = load i64* %tmp910, align 8             ; <i64> [#uses=1]
+       %tmp1112 = trunc i64 %tmp11 to i32              ; <i32> [#uses=1]
+       %tmp13 = and i32 %tmp1112, -1           ; <i32> [#uses=1]
+       %tmp14 = getelementptr %struct..1anon* %ud, i32 0, i32 0                ; <double*> [#uses=1]
+       %tmp1415 = bitcast double* %tmp14 to i64*               ; <i64*> [#uses=1]
+       %tmp16 = load i64* %tmp1415, align 8            ; <i64> [#uses=1]
+       %.cast = zext i32 32 to i64             ; <i64> [#uses=1]
+       %tmp17 = ashr i64 %tmp16, %.cast                ; <i64> [#uses=1]
+       %tmp1718 = trunc i64 %tmp17 to i32              ; <i32> [#uses=1]
+       %tmp19 = getelementptr [10 x i8]* @.str, i32 0, i32 0           ; <i8*> [#uses=1]
+       %tmp20 = call i32 (i8*, ...)* @printf( i8* %tmp19, i32 %tmp1718, i32 %tmp13 )           ; <i32> [#uses=0]
+       %tmp21 = load i32* %i, align 4          ; <i32> [#uses=1]
+       %tmp22 = add i32 %tmp21, 1              ; <i32> [#uses=1]
+       store i32 %tmp22, i32* %i, align 4
+       br label %bb23
+
+bb23:          ; preds = %bb, %entry
+       %tmp24 = load i32* %i, align 4          ; <i32> [#uses=1]
+       %tmp25 = icmp sle i32 %tmp24, 2         ; <i1> [#uses=1]
+       %tmp2526 = zext i1 %tmp25 to i8         ; <i8> [#uses=1]
+       %toBool = icmp ne i8 %tmp2526, 0                ; <i1> [#uses=1]
+       br i1 %toBool, label %bb, label %bb27
+
+bb27:          ; preds = %bb23
+       store i32 0, i32* %i, align 4
+       br label %bb46
+
+bb28:          ; preds = %bb46
+       %tmp29 = load i32* %i, align 4          ; <i32> [#uses=1]
+       %tmp30 = getelementptr [3 x i64]* @dnan, i32 0, i32 %tmp29              ; <i64*> [#uses=1]
+       %tmp31 = load i64* %tmp30, align 8              ; <i64> [#uses=1]
+       %tmp32 = getelementptr %struct..1anon* %ud, i32 0, i32 0                ; <double*> [#uses=1]
+       %tmp3233 = bitcast double* %tmp32 to i64*               ; <i64*> [#uses=1]
+       store i64 %tmp31, i64* %tmp3233, align 8
+       %tmp35 = getelementptr %struct..1anon* %ud, i32 0, i32 0                ; <double*> [#uses=1]
+       %tmp36 = load double* %tmp35, align 8           ; <double> [#uses=1]
+       %tmp3637 = fptrunc double %tmp36 to float               ; <float> [#uses=1]
+       %tmp38 = getelementptr %struct..0anon* %uf, i32 0, i32 0                ; <float*> [#uses=1]
+       store float %tmp3637, float* %tmp38, align 4
+       %tmp39 = getelementptr %struct..0anon* %uf, i32 0, i32 0                ; <float*> [#uses=1]
+       %tmp3940 = bitcast float* %tmp39 to i32*                ; <i32*> [#uses=1]
+       %tmp41 = load i32* %tmp3940, align 4            ; <i32> [#uses=1]
+       %tmp42 = getelementptr [6 x i8]* @.str1, i32 0, i32 0           ; <i8*> [#uses=1]
+       %tmp43 = call i32 (i8*, ...)* @printf( i8* %tmp42, i32 %tmp41 )         ; <i32> [#uses=0]
+       %tmp44 = load i32* %i, align 4          ; <i32> [#uses=1]
+       %tmp45 = add i32 %tmp44, 1              ; <i32> [#uses=1]
+       store i32 %tmp45, i32* %i, align 4
+       br label %bb46
+
+bb46:          ; preds = %bb28, %bb27
+       %tmp47 = load i32* %i, align 4          ; <i32> [#uses=1]
+       %tmp48 = icmp sle i32 %tmp47, 2         ; <i1> [#uses=1]
+       %tmp4849 = zext i1 %tmp48 to i8         ; <i8> [#uses=1]
+       %toBool50 = icmp ne i8 %tmp4849, 0              ; <i1> [#uses=1]
+       br i1 %toBool50, label %bb28, label %bb51
+
+bb51:          ; preds = %bb46
+       store i32 0, i32* %i, align 4
+       br label %bb78
+
+bb52:          ; preds = %bb78
+       %tmp53 = load i32* %i, align 4          ; <i32> [#uses=1]
+       %tmp54 = getelementptr [3 x i32]* @fsnan, i32 0, i32 %tmp53             ; <i32*> [#uses=1]
+       %tmp55 = load i32* %tmp54, align 4              ; <i32> [#uses=1]
+       %tmp56 = getelementptr %struct..0anon* %uf, i32 0, i32 0                ; <float*> [#uses=1]
+       %tmp5657 = bitcast float* %tmp56 to i32*                ; <i32*> [#uses=1]
+       store i32 %tmp55, i32* %tmp5657, align 4
+       %tmp58 = getelementptr %struct..0anon* %uf, i32 0, i32 0                ; <float*> [#uses=1]
+       %tmp59 = load float* %tmp58, align 4            ; <float> [#uses=1]
+       %tmp5960 = fpext float %tmp59 to double         ; <double> [#uses=1]
+       %tmp61 = getelementptr %struct..1anon* %ud, i32 0, i32 0                ; <double*> [#uses=1]
+       store double %tmp5960, double* %tmp61, align 8
+       %tmp62 = getelementptr %struct..1anon* %ud, i32 0, i32 0                ; <double*> [#uses=1]
+       %tmp6263 = bitcast double* %tmp62 to i64*               ; <i64*> [#uses=1]
+       %tmp64 = load i64* %tmp6263, align 8            ; <i64> [#uses=1]
+       %tmp6465 = trunc i64 %tmp64 to i32              ; <i32> [#uses=1]
+       %tmp66 = and i32 %tmp6465, -1           ; <i32> [#uses=1]
+       %tmp68 = getelementptr %struct..1anon* %ud, i32 0, i32 0                ; <double*> [#uses=1]
+       %tmp6869 = bitcast double* %tmp68 to i64*               ; <i64*> [#uses=1]
+       %tmp70 = load i64* %tmp6869, align 8            ; <i64> [#uses=1]
+       %.cast71 = zext i32 32 to i64           ; <i64> [#uses=1]
+       %tmp72 = ashr i64 %tmp70, %.cast71              ; <i64> [#uses=1]
+       %tmp7273 = trunc i64 %tmp72 to i32              ; <i32> [#uses=1]
+       %tmp74 = getelementptr [10 x i8]* @.str, i32 0, i32 0           ; <i8*> [#uses=1]
+       %tmp75 = call i32 (i8*, ...)* @printf( i8* %tmp74, i32 %tmp7273, i32 %tmp66 )           ; <i32> [#uses=0]
+       %tmp76 = load i32* %i, align 4          ; <i32> [#uses=1]
+       %tmp77 = add i32 %tmp76, 1              ; <i32> [#uses=1]
+       store i32 %tmp77, i32* %i, align 4
+       br label %bb78
+
+bb78:          ; preds = %bb52, %bb51
+       %tmp79 = load i32* %i, align 4          ; <i32> [#uses=1]
+       %tmp80 = icmp sle i32 %tmp79, 2         ; <i1> [#uses=1]
+       %tmp8081 = zext i1 %tmp80 to i8         ; <i8> [#uses=1]
+       %toBool82 = icmp ne i8 %tmp8081, 0              ; <i1> [#uses=1]
+       br i1 %toBool82, label %bb52, label %bb83
+
+bb83:          ; preds = %bb78
+       store i32 0, i32* %i, align 4
+       br label %bb101
+
+bb84:          ; preds = %bb101
+       %tmp85 = load i32* %i, align 4          ; <i32> [#uses=1]
+       %tmp86 = getelementptr [3 x i64]* @dsnan, i32 0, i32 %tmp85             ; <i64*> [#uses=1]
+       %tmp87 = load i64* %tmp86, align 8              ; <i64> [#uses=1]
+       %tmp88 = getelementptr %struct..1anon* %ud, i32 0, i32 0                ; <double*> [#uses=1]
+       %tmp8889 = bitcast double* %tmp88 to i64*               ; <i64*> [#uses=1]
+       store i64 %tmp87, i64* %tmp8889, align 8
+       %tmp90 = getelementptr %struct..1anon* %ud, i32 0, i32 0                ; <double*> [#uses=1]
+       %tmp91 = load double* %tmp90, align 8           ; <double> [#uses=1]
+       %tmp9192 = fptrunc double %tmp91 to float               ; <float> [#uses=1]
+       %tmp93 = getelementptr %struct..0anon* %uf, i32 0, i32 0                ; <float*> [#uses=1]
+       store float %tmp9192, float* %tmp93, align 4
+       %tmp94 = getelementptr %struct..0anon* %uf, i32 0, i32 0                ; <float*> [#uses=1]
+       %tmp9495 = bitcast float* %tmp94 to i32*                ; <i32*> [#uses=1]
+       %tmp96 = load i32* %tmp9495, align 4            ; <i32> [#uses=1]
+       %tmp97 = getelementptr [6 x i8]* @.str1, i32 0, i32 0           ; <i8*> [#uses=1]
+       %tmp98 = call i32 (i8*, ...)* @printf( i8* %tmp97, i32 %tmp96 )         ; <i32> [#uses=0]
+       %tmp99 = load i32* %i, align 4          ; <i32> [#uses=1]
+       %tmp100 = add i32 %tmp99, 1             ; <i32> [#uses=1]
+       store i32 %tmp100, i32* %i, align 4
+       br label %bb101
+
+bb101:         ; preds = %bb84, %bb83
+       %tmp102 = load i32* %i, align 4         ; <i32> [#uses=1]
+       %tmp103 = icmp sle i32 %tmp102, 2               ; <i1> [#uses=1]
+       %tmp103104 = zext i1 %tmp103 to i8              ; <i8> [#uses=1]
+       %toBool105 = icmp ne i8 %tmp103104, 0           ; <i1> [#uses=1]
+       br i1 %toBool105, label %bb84, label %bb106
+
+bb106:         ; preds = %bb101
+       br label %return
+
+return:                ; preds = %bb106
+       %retval107 = load i32* %retval          ; <i32> [#uses=1]
+       ret i32 %retval107
+}
+
+declare i32 @printf(i8*, ...)