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| author | Johnny Chen <johnny.chen@apple.com> | 2011-04-05 18:02:46 +0000 |
|---|---|---|
| committer | Johnny Chen <johnny.chen@apple.com> | 2011-04-05 18:02:46 +0000 |
| commit | 33d3a9fadcad11503fe51b4a0196d1dd1ab93a87 (patch) | |
| tree | 12ccf1bf48ab3e6a17b545d6a1b3f47ebe2f591a /llvm/lib/Target | |
| parent | 7692db3ea231754886d220dc2e60a9fac4c71e68 (diff) | |
| download | bcm5719-llvm-33d3a9fadcad11503fe51b4a0196d1dd1ab93a87.tar.gz bcm5719-llvm-33d3a9fadcad11503fe51b4a0196d1dd1ab93a87.zip | |
Constants with multiple encodings (ARM):
An alternative syntax is available for a modified immediate constant that permits the programmer to specify
the encoding directly. In this syntax, #<const> is instead written as #<byte>,#<rot>, where:
<byte> is the numeric value of abcdefgh, in the range 0-255
<rot> is twice the numeric value of rotation, an even number in the range 0-30.
llvm-svn: 128897
Diffstat (limited to 'llvm/lib/Target')
| -rw-r--r-- | llvm/lib/Target/ARM/InstPrinter/ARMInstPrinter.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/llvm/lib/Target/ARM/InstPrinter/ARMInstPrinter.cpp b/llvm/lib/Target/ARM/InstPrinter/ARMInstPrinter.cpp index f080fa81e94..fc2aa7526b7 100644 --- a/llvm/lib/Target/ARM/InstPrinter/ARMInstPrinter.cpp +++ b/llvm/lib/Target/ARM/InstPrinter/ARMInstPrinter.cpp @@ -136,9 +136,10 @@ static void printSOImm(raw_ostream &O, int64_t V, raw_ostream *CommentStream, unsigned Rot = ARM_AM::getSOImmValRot(V); // Print low-level immediate formation info, per - // A5.1.3: "Data-processing operands - Immediate". + // A5.2.3: Data-processing (immediate), and + // A5.2.4: Modified immediate constants in ARM instructions if (Rot) { - O << "#" << Imm << ", " << Rot; + O << "#" << Imm << ", #" << Rot; // Pretty printed version. if (CommentStream) *CommentStream << (int)ARM_AM::rotr32(Imm, Rot) << "\n"; |
