Add constants block to PNaCl bitcode reader.

tests_lit/reader_tests/constants.ll

+; Test handling of constants in function blocks.
+
+; RUN: llvm-as < %s | pnacl-freeze \
+; RUN:              | %llvm2ice -notranslate -verbose=inst -build-on-read \
+; RUN:                -allow-pnacl-reader-error-recovery \
+; RUN:              | FileCheck %s
+
+define void @TestIntegers() {
+; CHECK: __0:
+
+  ; Test various sized integers
+  %v0 = or i1 true, false
+; CHECK-NEXT:   %__0 = or i1 true, false
+
+  %v1 = add i8 0, 0
+; CHECK-NEXT:   %__1 = add i8 0, 0
+
+  %v2 = add i8 5, 0
+; CHECK-NEXT:   %__2 = add i8 5, 0
+
+  %v3 = add i8 -5, 0
+; CHECK-NEXT:   %__3 = add i8 -5, 0
+
+  %v4 = and i16 10, 0
+; CHECK-NEXT:   %__4 = and i16 10, 0
+
+  %v5 = add i16 -10, 0
+; CHECK-NEXT:   %__5 = add i16 -10, 0
+
+  %v6 = add i32 20, 0
+; CHECK-NEXT:   %__6 = add i32 20, 0
+
+  %v7 = add i32 -20, 0
+; CHECK-NEXT:   %__7 = add i32 -20, 0
+
+  %v8 = add i64 30, 0
+; CHECK-NEXT:   %__8 = add i64 30, 0
+
+  %v9 = add i64 -30, 0
+; CHECK-NEXT:   %__9 = add i64 -30, 0
+
+  ; Test undefined integer values.
+  %v10 = xor i1 undef, false
+; CHECK-NEXT:   %__10 = xor i1 undef, false
+
+  %v11 = add i8 undef, 0
+; CHECK-NEXT:   %__11 = add i8 undef, 0
+
+  %v12 = add i16 undef, 0
+; CHECK-NEXT:   %__12 = add i16 undef, 0
+
+  %v13 = add i32 undef, 0
+; CHECK-NEXT:   %__13 = add i32 undef, 0
+
+  %v14 = add i64 undef, 0
+; CHECK-NEXT:   %__14 = add i64 undef, 0
+
+  ret void
+; CHECK-NEXT:   ret void
+
+}
+
+define void @TestFloats() {
+; CHECK: __0:
+
+  ; Test float and double constants
+  %v0 = fadd float 1.0, 0.0
+; CHECK-NEXT:   %__0 = fadd float 1.000000e+00, 0.000000e+00
+
+  %v1 = fadd double 1.0, 0.0
+; CHECK-NEXT:   %__1 = fadd double 1.000000e+00, 0.000000e+00
+
+  %v2 = fsub float 7.000000e+00, 8.000000e+00
+; CHECK-NEXT:   %__2 = fsub float 7.000000e+00, 8.000000e+00
+
+  %v3 = fsub double 5.000000e+00, 6.000000e+00
+; CHECK-NEXT:   %__3 = fsub double 5.000000e+00, 6.000000e+00
+
+  ; Test undefined float and double.
+  %v4 = fadd float undef, 0.0
+; CHECK-NEXT:   %__4 = fadd float undef, 0.000000e+00
+
+  %v5 = fsub double undef, 6.000000e+00
+; CHECK-NEXT:   %__5 = fsub double undef, 6.000000e+00
+
+  ; Test special floating point constants. Note: LLVM assembly appears
+  ; to use 64-bit integer constants for both float and double.
+
+  ; Generated from NAN in <math.h>
+  %v6 = fadd float 0x7FF8000000000000, 0.0
+; CHECK-NEXT:   %__6 = fadd float nan, 0.000000e+00
+
+  ; Generated from -NAN in <math.h>
+  %v7 = fadd float 0xFFF8000000000000, 0.0
+; CHECK-NEXT:   %__7 = fadd float -nan, 0.000000e+00
+
+  ; Generated from INFINITY in <math.h>
+  %v8 = fadd float 0x7FF0000000000000, 0.0
+; CHECK-NEXT:   %__8 = fadd float inf, 0.000000e+00
+
+  ; Generated from -INFINITY in <math.h>
+  %v9 = fadd float 0xFFF0000000000000, 0.0
+; CHECK-NEXT:   %__9 = fadd float -inf, 0.000000e+00
+
+  ; Generated from FLT_MIN in <float.h>
+  %v10 = fadd float 0x381000000000000000, 0.0
+; CHECK-NEXT:   %__10 = fadd float 0.000000e+00, 0.000000e+00
+
+  ; Generated from -FLT_MIN in <float.h>
+  %v11 = fadd float 0xb81000000000000000, 0.0
+; CHECK-NEXT:   %__11 = fadd float 0.000000e+00, 0.000000e+00
+
+  ; Generated from FLT_MAX in <float.h>
+  %v12 = fadd float 340282346638528859811704183484516925440.000000, 0.0
+; CHECK-NEXT:   %__12 = fadd float 3.402823e+38, 0.000000e+00
+
+  ; Generated from -FLT_MAX in <float.h>
+  %v13 = fadd float -340282346638528859811704183484516925440.000000, 0.0
+; CHECK-NEXT:   %__13 = fadd float -3.402823e+38, 0.000000e+00
+
+  ; Generated from NAN in <math.h>
+  %v14 = fadd double 0x7FF8000000000000, 0.0
+; CHECK-NEXT:   %__14 = fadd double nan, 0.000000e+00
+
+  ; Generated from -NAN in <math.h>
+  %v15 = fadd double 0xFFF8000000000000, 0.0
+; CHECK-NEXT:   %__15 = fadd double -nan, 0.000000e+00
+
+  ; Generated from INFINITY in <math.h>
+  %v16 = fadd double 0x7FF0000000000000, 0.0
+; CHECK-NEXT:   %__16 = fadd double inf, 0.000000e+00
+
+  ; Generated from -INFINITY in <math.h>
+  %v17 = fadd double 0xFFF0000000000000, 0.0
+; CHECK-NEXT:   %__17 = fadd double -inf, 0.000000e+00
+
+  ; Generated from DBL_MIN in <float.h>
+  %v18 = fadd double 0x0010000000000000, 0.0
+; CHECK-NEXT:   %__18 = fadd double 2.225074e-308, 0.000000e+00
+
+  ; Generated from -DBL_MIN in <float.h>
+  %v19 = fadd double 0x8010000000000000, 0.0
+; CHECK-NEXT:   %__19 = fadd double -2.225074e-308, 0.000000e+00
+
+  ; Generated from DBL_MAX in <float.h>
+  %v20 = fadd double 179769313486231570814527423731704356798070567525844996598917476803157260780028538760589558632766878171540458953514382464234321326889464182768467546703537516986049910576551282076245490090389328944075868508455133942304583236903222948165808559332123348274797826204144723168738177180919299881250404026184124858368.000000, 0.0
+; CHECK-NEXT:   %__20 = fadd double 1.797693e+308, 0.000000e+00
+
+  ; Generated from -DBL_MAX in <float.h>
+  %v21 = fadd double -179769313486231570814527423731704356798070567525844996598917476803157260780028538760589558632766878171540458953514382464234321326889464182768467546703537516986049910576551282076245490090389328944075868508455133942304583236903222948165808559332123348274797826204144723168738177180919299881250404026184124858368.000000, 0.0
+; CHECK-NEXT:   %__21 = fadd double -1.797693e+308, 0.000000e+00
+
+  ret void
+; CHECK-NEXT:   ret void
+}