diff --git a/webrtc/common_audio/signal_processing/complex_fft.c b/webrtc/common_audio/signal_processing/complex_fft.c
index a026b70b0..c82306473 100644
--- a/webrtc/common_audio/signal_processing/complex_fft.c
+++ b/webrtc/common_audio/signal_processing/complex_fft.c
@@ -105,7 +105,6 @@ int WebRtcSpl_ComplexFFT(int16_t frfi[], int stages, int mode)
 
 #ifdef WEBRTC_ARCH_ARM_V7
                 int32_t wri = 0;
-                int32_t frfi_r = 0;
                 __asm __volatile("pkhbt %0, %1, %2, lsl #16" : "=r"(wri) :
                     "r"((int32_t)wr), "r"((int32_t)wi));
 #endif
@@ -115,19 +114,19 @@ int WebRtcSpl_ComplexFFT(int16_t frfi[], int stages, int mode)
                     j = i + l;
 
 #ifdef WEBRTC_ARCH_ARM_V7
-                  __asm __volatile(
-                      "pkhbt %[frfi_r], %[frfi_even], %[frfi_odd], lsl #16\n\t"
-                      "smlsd %[tr32], %[wri], %[frfi_r], %[cfftrnd]\n\t"
-                      :[frfi_r]"+r"(frfi_r),
-                       [tr32]"=r"(tr32)
-                      :[frfi_even]"r"((int32_t)frfi[2*j]),
-                       [frfi_odd]"r"((int32_t)frfi[2*j +1]),
-                       [wri]"r"(wri),
-                       [cfftrnd]"r"(CFFTRND)
-                  );
-                  __asm __volatile("smladx %0, %1, %2, %3\n\t" : "=r"(ti32) :
-                                   "r"(wri), "r"(frfi_r), "r"(CFFTRND));
-    
+                    register int32_t frfi_r;
+                    __asm __volatile(
+                        "pkhbt %[frfi_r], %[frfi_even], %[frfi_odd],"
+                        " lsl #16\n\t"
+                        "smlsd %[tr32], %[wri], %[frfi_r], %[cfftrnd]\n\t"
+                        "smladx %[ti32], %[wri], %[frfi_r], %[cfftrnd]\n\t"
+                        :[frfi_r]"=&r"(frfi_r),
+                         [tr32]"=&r"(tr32),
+                         [ti32]"=r"(ti32)
+                        :[frfi_even]"r"((int32_t)frfi[2*j]),
+                         [frfi_odd]"r"((int32_t)frfi[2*j +1]),
+                         [wri]"r"(wri),
+                         [cfftrnd]"r"(CFFTRND));
 #else
                     tr32 = WEBRTC_SPL_MUL_16_16(wr, frfi[2 * j])
                             - WEBRTC_SPL_MUL_16_16(wi, frfi[2 * j + 1]) + CFFTRND;
@@ -252,7 +251,6 @@ int WebRtcSpl_ComplexIFFT(int16_t frfi[], int stages, int mode)
 
 #ifdef WEBRTC_ARCH_ARM_V7
                 int32_t wri = 0;
-                int32_t frfi_r = 0;
                 __asm __volatile("pkhbt %0, %1, %2, lsl #16" : "=r"(wri) :
                     "r"((int32_t)wr), "r"((int32_t)wi));
 #endif
@@ -262,12 +260,13 @@ int WebRtcSpl_ComplexIFFT(int16_t frfi[], int stages, int mode)
                     j = i + l;
 
 #ifdef WEBRTC_ARCH_ARM_V7
+                    register int32_t frfi_r;
                     __asm __volatile(
                       "pkhbt %[frfi_r], %[frfi_even], %[frfi_odd], lsl #16\n\t"
                       "smlsd %[tr32], %[wri], %[frfi_r], %[cifftrnd]\n\t"
                       "smladx %[ti32], %[wri], %[frfi_r], %[cifftrnd]\n\t"
-                      :[frfi_r]"+r"(frfi_r),
-                       [tr32]"=r"(tr32),
+                      :[frfi_r]"=&r"(frfi_r),
+                       [tr32]"=&r"(tr32),
                        [ti32]"=r"(ti32)
                       :[frfi_even]"r"((int32_t)frfi[2*j]),
                        [frfi_odd]"r"((int32_t)frfi[2*j +1]),
diff --git a/webrtc/common_audio/signal_processing/include/spl_inl_armv7.h b/webrtc/common_audio/signal_processing/include/spl_inl_armv7.h
index fdbcb4343..a437a5556 100644
--- a/webrtc/common_audio/signal_processing/include/spl_inl_armv7.h
+++ b/webrtc/common_audio/signal_processing/include/spl_inl_armv7.h
@@ -41,7 +41,7 @@ static __inline int32_t WEBRTC_SPL_MUL_32_32_RSFT32(int16_t a,
   __asm __volatile (
     "pkhbt %[tmp], %[b], %[a], lsl #16\n\t"
     "smmulr %[tmp], %[tmp], %[c]\n\t"
-    :[tmp]"+r"(tmp)
+    :[tmp]"+&r"(tmp)
     :[a]"r"(a),
      [b]"r"(b),
      [c]"r"(c)
diff --git a/webrtc/modules/audio_coding/codecs/isac/fix/source/filterbanks.c b/webrtc/modules/audio_coding/codecs/isac/fix/source/filterbanks.c
index 9c9d098ae..64557e132 100644
--- a/webrtc/modules/audio_coding/codecs/isac/fix/source/filterbanks.c
+++ b/webrtc/modules/audio_coding/codecs/isac/fix/source/filterbanks.c
@@ -102,8 +102,8 @@ void WebRtcIsacfix_HighpassFilterFixDec32(int16_t *io,
 
 #ifdef WEBRTC_ARCH_ARM_V7
     {
-      int tmp_coeff0 = 0;
-      int tmp_coeff1 = 0;
+      register int tmp_coeff0;
+      register int tmp_coeff1;
       __asm __volatile(
         "ldr %[tmp_coeff0], [%[coeff]]\n\t"
         "ldr %[tmp_coeff1], [%[coeff], #4]\n\t"
@@ -113,12 +113,12 @@ void WebRtcIsacfix_HighpassFilterFixDec32(int16_t *io,
         "ldr %[tmp_coeff1], [%[coeff], #12]\n\t"
         "smmulr %[a1], %[tmp_coeff0], %[state0]\n\t"
         "smmulr %[b1], %[tmp_coeff1], %[state1]\n\t"
-        :[a2]"+r"(a2),
-         [b2]"+r"(b2),
-         [a1]"+r"(a1),
-         [b1]"+r"(b1),
-         [tmp_coeff0]"+r"(tmp_coeff0),
-         [tmp_coeff1]"+r"(tmp_coeff1)
+        :[a2]"=&r"(a2),
+         [b2]"=&r"(b2),
+         [a1]"=&r"(a1),
+         [b1]"=r"(b1),
+         [tmp_coeff0]"=&r"(tmp_coeff0),
+         [tmp_coeff1]"=&r"(tmp_coeff1)
         :[coeff]"r"(coefficient),
          [state0]"r"(state0),
          [state1]"r"(state1)
diff --git a/webrtc/modules/audio_processing/aecm/aecm_core_c.c b/webrtc/modules/audio_processing/aecm/aecm_core_c.c
index 63d4ac902..f8491e973 100644
--- a/webrtc/modules/audio_processing/aecm/aecm_core_c.c
+++ b/webrtc/modules/audio_processing/aecm/aecm_core_c.c
@@ -260,7 +260,7 @@ static int TimeToFrequencyDomain(AecmCore_t* aecm,
       __asm __volatile(
         "smulbb %[tmp32no1], %[real], %[real]\n\t"
         "smlabb %[tmp32no2], %[imag], %[imag], %[tmp32no1]\n\t"
-        :[tmp32no1]"+r"(tmp32no1),
+        :[tmp32no1]"+&r"(tmp32no1),
          [tmp32no2]"=r"(tmp32no2)
         :[real]"r"(freq_signal[i].real),
          [imag]"r"(freq_signal[i].imag)